In an unprecedented occurrence, India's workhorse spacefaring rocket PSLV has faced repeat failures - PSLV-C61 on 18th May 2025 and PSLV C-62 on 12th&nbsp;January 2026. On both instances, ISRO lost million-dollar satellites meant to serve national security purposes. As ISRO's workhorse rocket, PSLV has flown 64 times in 33 years, of which it has faced four major failures including the latest. Notably, the 2025 failure and the latest one have been mid-flight failures linked to the third stage of the four-stage spacefaring rocket.&nbsp;&nbsp;Delivering a televised statement from the spaceport on Monday, (12th Jan), ISRO Chief, Dr. V. Narayanan said, "We attempted PSLV-C62 mission. PSLV is a four-stage rocket. The vehicle performance up to almost the end of the third stage was as expected. By the end of third stage, we observed a disturbance in the vehicle, and a deviation was observed in the flight path. We are analyzing the data, we will come back at the earliest."&nbsp;&nbsp;&nbsp;After the May 2025 launch failure, the ISRO Chief had said, "Up to the second stage, performance was normal. Third stage ignited, but we made an observation regarding its functioning. Mission could not be accomplished. We are studying the data," said ISRO Chief Dr V. Narayanan. "The third stage of the PSLV uses a solid-fuel motor system. There was a fall in the chamber pressure in the motor case. We are studying the entire performance," the ISRO Chief had added back then.&nbsp;<h2>PSLV-C62 was meant to be a comeback flight after May 2025 setback</h2>Monday's PSLV-C62 flight marked PSLV's return to flight after a rare setback during the previous launch in May 2025, and this is also ISRO's first launch of 2026. In simple terms, the PSLV workhorse rocket was grounded after the May failure last year. On&nbsp; May 17th 2025, the PSLV rocket suffered a mid-flight failure. The PSLV's third stage malfunction led to the loss of the rocket and the EOS-09 radar imaging satellite, a critical asset meant to enhance India's day and night, all-weather space-based surveillance.&nbsp;The primary satellite of this PSLV-C62 mission was the 'EOS-N1' or 'Anvesha', an Earth Observation satellite built by India's Defence Research Development Organization(DRDO). This satellite was to be placed 511kms above the Earth. 'EOS-N1' is a Hyperspectral imaging satellite, which means it can see much more than the human eye or a conventional optical-imaging satellite. As the surface of the Earth gets illuminated by sunlight, different materials(soil, water, metal, vegetation, concrete structure) reflect light, across various wavelengths. A hyperspectral sensor can capture these reflections, classify them and help identify what material it is made of.&nbsp;&nbsp;This technology has immense civilian and strategic applications, as it can scan the Earth based on unique light signatures emitted by materials. In simple terms, it can identify different materials based on their unique reflection fingerprint(spectral signature). Water quality, soil composition, crop health, are among the environmental aspects that can be studied using this technology. Military targets under camouflage can also be detected.&nbsp;In addition to 'EOS-N1', there were be 15 co-passenger satellites aboard the PSLV-C62. Seven satellites are from India, while two of them are from Europe, five of them are from Brazil, and one from Nepal. Many of these satellites are from academia or startups, and are meant to demonstrate unique experiments in space.&nbsp;<h2>PSLV-C61 Failure Analysis Committee report yet to be made public</h2>As a taxpayer-funded civilian space agency founded with the ideals of serving the people of India, ISRO has had the practice of making public the Failure Analysis Committee(FAC) reports. These FAC reports are typically readied by in-house experts within a few months of a mission failure.&nbsp;&nbsp;However, the FAC report related to the May 2025 PSLV-C61 failure has not been publicly released so far. Likewise, the FAC report pertaining to the failure of the NVS-02 strategic satellite in January 2025 remains unreleased to the public. This is widely seen as a departure from the "ISRO culture". However, both these FAC reports are learnt to have been tabled before the Government of India.&nbsp;Given ISRO's role in launching foreign satellites belonging to governments and private firms, FAC reports being made public are crucial for maintaining transparency and re-establishing confidence. It must be emphasized that the PSLV-C61 and PSLV-C62 have failed due to a malfunction in the third-stage, raising questions about quality control and reliability.

India’s PSLV rocket has suffered back-to-back failures in May 2025 and January 2026, both linked to third-stage malfunctions, causing the loss of key national security satellites. The latest PSLV-C62 failure came during ISRO’s first launch of 2026

In an unprecedented occurrence, India's workhorse spacefaring rocket PSLV has faced repeat failures - PSLV-C61 on 18th May 2025 and PSLV C-62 on 12th January 2026. On both instances, ISRO lost million-dollar satellites meant to serve national security purposes. As ISRO's workhorse rocket, PSLV has flown 64 times in 33 years, of which it has faced four major failures including the latest. Notably, the 2025 failure and the latest one have been mid-flight failures linked to the third stage of the four-stage spacefaring rocket. Delivering a televised statement from the spaceport on Monday, (12th Jan), ISRO Chief, Dr. V. Narayanan said, "We attempted PSLV-C62 mission. PSLV is a four-stage rocket. The vehicle performance up to almost the end of the third stage was as expected. By the end of third stage, we observed a disturbance in the vehicle, and a deviation was observed in the flight path. We are analyzing the data, we will come back at the earliest." After the May 2025 launch failure, the ISRO Chief had said, "Up to the second stage, performance was normal. Third stage ignited, but we made an observation regarding its functioning. Mission could not be accomplished. We are studying the data," said ISRO Chief Dr V. Narayanan. "The third stage of the PSLV uses a solid-fuel motor system. There was a fall in the chamber pressure in the motor case. We are studying the entire performance," the ISRO Chief had added back then. PSLV-C62 was meant to be a comeback flight after May 2025 setback Monday's PSLV-C62 flight marked PSLV's return to flight after a rare setback during the previous launch in May 2025, and this is also ISRO's first launch of 2026. In simple terms, the PSLV workhorse rocket was grounded after the May failure last year. On May 17th 2025, the PSLV rocket suffered a mid-flight failure. The PSLV's third stage malfunction led to the loss of the rocket and the EOS-09 radar imaging satellite, a critical asset meant to enhance India's day and night, all-weather space-based surveillance. The primary satellite of this PSLV-C62 mission was the 'EOS-N1' or 'Anvesha', an Earth Observation satellite built by India's Defence Research Development Organization(DRDO). This satellite was to be placed 511kms above the Earth. 'EOS-N1' is a Hyperspectral imaging satellite, which means it can see much more than the human eye or a conventional optical-imaging satellite. As the surface of the Earth gets illuminated by sunlight, different materials(soil, water, metal, vegetation, concrete structure) reflect light, across various wavelengths. A hyperspectral sensor can capture these reflections, classify them and help identify what material it is made of. This technology has immense civilian and strategic applications, as it can scan the Earth based on unique light signatures emitted by materials. In simple terms, it can identify different materials based on their unique reflection fingerprint(spectral signature). Water quality, soil composition, crop health, are among the environmental aspects that can be studied using this technology. Military targets under camouflage can also be detected. In addition to 'EOS-N1', there were be 15 co-passenger satellites aboard the PSLV-C62. Seven satellites are from India, while two of them are from Europe, five of them are from Brazil, and one from Nepal. Many of these satellites are from academia or startups, and are meant to demonstrate unique experiments in space. PSLV-C61 Failure Analysis Committee report yet to be made public As a taxpayer-funded civilian space agency founded with the ideals of serving the people of India, ISRO has had the practice of making public the Failure Analysis Committee(FAC) reports. These FAC reports are typically readied by in-house experts within a few months of a mission failure. However, the FAC report related to the May 2025 PSLV-C61 failure has not been publicly released so far. Likewise, the FAC report pertaining to the failure of the NVS-02 strategic satellite in January 2025 remains unreleased to the public. This is widely seen as a departure from the "ISRO culture". However, both these FAC reports are learnt to have been tabled before the Government of India. Given ISRO's role in launching foreign satellites belonging to governments and private firms, FAC reports being made public are crucial for maintaining transparency and re-establishing confidence. It must be emphasized that the PSLV-C61 and PSLV-C62 have failed due to a malfunction in the third-stage, raising questions about quality control and reliability.

India’s PSLV rocket has suffered back-to-back failures in May 2025 and January 2026, both linked to third-stage malfunctions, causing the loss of key national security satellites. The latest PSLV-C62 failure came during ISRO’s first launch of 2026

Repeat failures for ISRO's PSLV rocket; India loses strategic satellite yet again

Indian Space Research Organisation (ISRO) on Sunday (Nov 2) launched the country’s heaviest communication satellite CMS-03 (GSAT-7R), marking a milestone for India’s independent satellite capabilities and maritime security. The launch took place aboard the LVM3-M5 rocket, also known as ‘Bahubali’ of Indian rockets, from the second launch pad of the Satish Dhawan Space Station in Sriharikota, Andhra Pradesh, at 5:26 pm.&nbsp;“Liftoff! #LVM3M5 launches #CMS03 from SDSC SHAR, carrying India’s heaviest communication satellite to GTO,” ISRO wrote on X. Adding an update in another post, it said, “LVM3-M5/CMS-03 Mission Update: CMS-03 separated successfully. Perfect injection.” &nbsp;

<blockquote class="twitter-tweet">Liftoff! <a href="https://twitter.com/hashtag/LVM3M5?src=hash&amp;ref_src=twsrc%5Etfw">#LVM3M5</a> launches <a href="https://twitter.com/hashtag/CMS03?src=hash&amp;ref_src=twsrc%5Etfw">#CMS03</a> from SDSC SHAR, carrying India’s heaviest communication satellite to GTO. Youtube URL:<a href="https://t.co/gFKB0A1GJE">https://t.co/gFKB0A1GJE</a> For more Information Visit<a href="https://t.co/yfpU5OTEc5">https://t.co/yfpU5OTEc5</a>&mdash; ISRO (@isro) <a href="https://twitter.com/isro/status/1984952762099274035?ref_src=twsrc%5Etfw">November 2, 2025</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>

The mission marks the fifth operational flight of the LVM3 vehicle. The rocket was last used during the Chandrayaan-3 &nbsp;launch on July 14, 2023.&nbsp;Following the launch, ISRO chief Dr V Narayanan announced that the Indian space agency successfully conducted an in-orbit test of the indigenously developed C25 cryogenic stage.&nbsp;“LVM3-M5 successfully injected into the required orbit precisely. This is the 8th consecutive successful launch by LVM3. CMS-03 is the heaviest satellite placed in GTO orbit. The vehicle performance was enhanced to increase its payload capacity by 10 per cent,” he said.&nbsp;He further added, “The satellite has a life of 15 years and carries a host of new technologies. We accomplished this mission despite the difficult weather conditions. The launch also had the reignition of the C20 cryogenic engine for the first time after placing the satellite. This will help in placing satellites in multiple orbits using LVM3.”&nbsp;The satellite would enhance the space-based communications and maritime domain awareness capabilities for the Navy with indigenous, state-of-the-art components specifically designed to meet the operational requirements of the Indian Navy.&nbsp;“This satellite is India's heaviest communication satellite to date, weighing approximately more than 4,400 kg, and includes many indigenous state-of-the-art components developed specifically to meet the Indian Navy’s operational requirements,” the Indian Navy said.&nbsp;Congratulating ISRO on the successful launch, Prime Minister Narendra Modi wrote on X, “Our space sector continues to make us proud!”&nbsp;“Congratulations ISRO on the successful launch of India’s heaviest communication satellite, CMS-03. Powered by our space scientists, it is commendable how our space sector has become synonymous with excellence and innovation. Their successes have furthered national progress and empowered countless lives,” he said. &nbsp;

The launch took place aboard the LVM3-M5 rocket, also known as ‘Bahubali’ of Indian rockets, from Sriharikota at 5:26 pm IST.

Indian Space Research Organisation (ISRO) on Sunday (Nov 2) launched the country’s heaviest communication satellite CMS-03 (GSAT-7R), marking a milestone for India’s independent satellite capabilities and maritime security. The launch took place aboard the LVM3-M5 rocket, also known as ‘Bahubali’ of Indian rockets, from the second launch pad of the Satish Dhawan Space Station in Sriharikota, Andhra Pradesh, at 5:26 pm. “Liftoff! #LVM3M5 launches #CMS03 from SDSC SHAR, carrying India’s heaviest communication satellite to GTO,” ISRO wrote on X. Adding an update in another post, it said, “LVM3-M5/CMS-03 Mission Update: CMS-03 separated successfully. Perfect injection.”

The launch took place aboard the LVM3-M5 rocket, also known as ‘Bahubali’ of Indian rockets, from Sriharikota at 5:26 pm IST.

Liftoff! ISRO launches India’s heaviest satellite CMS-03 aboard ‘Bahubali’ rocket

In a week from now the Indian Space Research Agency is will be executing its third launch mission of this year. India's smallest rocket small satellite launch vehicle or SSLV will be carrying the Earth Imaging satellite EOS 08.

ISRO to launch SSLV-D3 on Independence Day after six months break

After having started 2024 with a launch on New Year's Day, the Indian Space Agency- ISRO (Indian Space Research Organisation) is ready with its second launch mission of the year&nbsp;slated for 17:30hrs IST, on 17th February. In its 16th flight, the GSLV rocket (formerly known as GSLV Mk2) will be carrying the INSAT-3DS satellite, which is designed for enhanced meteorological observations and monitoring of land and ocean surfaces for weather forecasting and disaster warning.

Funded by the Indian Ministry of Earth Sciences (MoES), the satellite will work along with its predecessors INSAT-3D and INSAT-3DR to augment Meteorological services.&nbsp;

Around 20 minutes after lift-off, the 420-ton GSLV rocket would place the satellite in a highly elliptical (egg-shaped) orbit around the Earth. From there, it would gradually use its onboard engines to push itself into a perfectly circular orbit that is almost 36,000 km above the earth- an orbit known as a geostationary orbit.

Satellites placed there appear stationary when viewed from a certain point on Earth because they are in sync with the rotation of the planet.&nbsp;

Also read |&nbsp;<a href="https://www.wionews.com/science/india-to-witness-30-rocket-launches-in-15-months-details-here-688242">India to witness 30 rocket launches in 15 months. Details here</a>

Various departments of the Ministry of Earth Sciences (MoES) such as the India Meteorological Department (IMD), National Centre for Medium-Range Weather Forecasting (NCMRWF), Indian Institute of Tropical Meteorology (IITM), National Institute of Ocean Technology (NIOT), Indian National Center for Ocean Information Services (INCOIS) and various other agencies and institutes will be using the INSAT-3DS Satellite data to provide improved weather forecasts and meteorological services.

Also read |&nbsp;<a href="https://www.wionews.com/india-news/india-pet-dog-protects-owners-body-from-wild-animals-for-48-hours-amid-heavy-snow-watch-688293">Pet dog protects owner's body from wild animals for 48 hours amid heavy snow. Watch</a>

In addition to its weather-related functionality, the satellite also carries a Satellite Aided Search &amp; Rescue transponder (SAS&amp;R). For example, fishermen who have a device that can communicate with this transponder can send distress messages to the satellite and it, in turn, would broadcast the signal to the relevant agencies, who can then mobilise to assist. Given that the satellite is placed high above the earth, it can view approximately 1/3rd the earth's surface and offers its coverage across a large area when compared to satellites in lower orbits.&nbsp;

After having started 2024 with a launch on New Year's Day, the Indian Space Agency- ISRO (Indian Space Research Organisation) is ready with its second launch mission of the year slated for 17:30hrs IST, on 17th February.

After having started 2024 with a launch on New Year's Day, the Indian Space Agency- ISRO (Indian Space Research Organisation) is ready with its second launch mission of the year slated for 17:30hrs IST, on 17th February. In its 16th flight, the GSLV rocket (formerly known as GSLV Mk2) will be carrying the INSAT-3DS satellite, which is designed for enhanced meteorological observations and monitoring of land and ocean surfaces for weather forecasting and disaster warning. Funded by the Indian Ministry of Earth Sciences (MoES), the satellite will work along with its predecessors INSAT-3D and INSAT-3DR to augment Meteorological services. Around 20 minutes after lift-off, the 420-ton GSLV rocket would place the satellite in a highly elliptical (egg-shaped) orbit around the Earth. From there, it would gradually use its onboard engines to push itself into a perfectly circular orbit that is almost 36,000 km above the earth- an orbit known as a geostationary orbit. Satellites placed there appear stationary when viewed from a certain point on Earth because they are in sync with the rotation of the planet. Also read | India to witness 30 rocket launches in 15 months. Details here Various departments of the Ministry of Earth Sciences (MoES) such as the India Meteorological Department (IMD), National Centre for Medium-Range Weather Forecasting (NCMRWF), Indian Institute of Tropical Meteorology (IITM), National Institute of Ocean Technology (NIOT), Indian National Center for Ocean Information Services (INCOIS) and various other agencies and institutes will be using the INSAT-3DS Satellite data to provide improved weather forecasts and meteorological services. Also read | Pet dog protects owner's body from wild animals for 48 hours amid heavy snow. Watch In addition to its weather-related functionality, the satellite also carries a Satellite Aided Search & Rescue transponder (SAS&R). For example, fishermen who have a device that can communicate with this transponder can send distress messages to the satellite and it, in turn, would broadcast the signal to the relevant agencies, who can then mobilise to assist. Given that the satellite is placed high above the earth, it can view approximately 1/3rd the earth's surface and offers its coverage across a large area when compared to satellites in lower orbits.

ISRO's 2nd launch mission of 2024 — GSLV F-14 to ferry weather monitoring satellite INSAT-3DS

ISRO (Indian Space Research Organisation) successfully launched XPoSat (X-ray Polarimeter Satellite) on Monday (January 1, 2024), first day of the new year. The lift-off took place from Satish Dhawan Space Centre in Sriharikota in southern Indian state of Andhra Pradesh. With XpoSat's successful launch, India has become second country after the United States to send an observatory in space to study black holes and neutron stars.

With XPoSat, ISRO has taken another historic step following launches of Chandrayaan-3 and Aditya L1 missions.

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<a href="https://twitter.com/hashtag/WATCH?src=hash&amp;ref_src=twsrc%5Etfw">#WATCH</a> | PSLV-C58 XPoSat Mission launch | ISRO launches X-Ray Polarimeter Satellite (XPoSat) from the first launch-pad, SDSC-SHAR, Sriharikota in Andhra Pradesh. 
 
(Source: ISRO) <a href="https://t.co/ws6Ik0Cdll">pic.twitter.com/ws6Ik0Cdll</a>
— ANI (@ANI) <a href="https://twitter.com/ANI/status/1741666204916531584?ref_src=twsrc%5Etfw">January 1, 2024</a></blockquote>
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"XPoSat (X-ray Polarimeter Satellite) is the first dedicated scientific satellite from ISRO to carry out research in space-based polarisation measurements of X-ray emission from celestial sources. The Satellite configuration is modified from the IMS-2 bus platform. The Configuration of the mainframe systems are derived based on the heritage of IRS satellites. It carries two payloads namely POLIX (Polarimeter Instrument in X-rays) and XSPECT (X-ray Spectroscopy and Timing). POLIX is realized by Raman Research Institute and XSPECT is by Space Astronomy Group of URSC," said&nbsp;ISRO.

<h2>As per ISRO, these are the XPoSat mission objectives</h2>

XPoSat will measure the polarisation of X-rays coming from about 50 cosmic sources. Thomson Scattering in the energy band 8-30keV will be measured by POLIX payload.

XPoSat will carry out long term spectral as well as temporal studies of cosmic X-ray sources. The XSPECT payload will make these measurements in the energy band 8-15keV

It will also undertake polarisation and spectroscopic measurements of X-ray emissions from sources in space using POLIX and XSPECT.

"The emission mechanism from various astronomical sources such as blackhole, neutron stars, active galactic nuclei, pulsar wind nebulae etc. originates from complex physical processes and are challenging to understand. While the spectroscopic and timing information by various space-based observatories provide a wealth of information, the exact nature of the emission from such sources still poses deeper challenges to astronomers," said&nbsp;ISRO.

(With inputs from agencies)

ISRO (Indian Space Research Organisation) successfully launched XPoSat (X-ray Polarimeter Satellite) on Monday (January 1, 2024), first day of the new year. The lift-off took place from Satish Dhawan Space Centre in Sriharikota in southern Indian state of Andhra Pradesh.

ISRO (Indian Space Research Organisation) successfully launched XPoSat (X-ray Polarimeter Satellite) on Monday (January 1, 2024), first day of the new year. The lift-off took place from Satish Dhawan Space Centre in Sriharikota in southern Indian state of Andhra Pradesh. With XpoSat's successful launch, India has become second country after the United States to send an observatory in space to study black holes and neutron stars. With XPoSat, ISRO has taken another historic step following launches of Chandrayaan-3 and Aditya L1 missions. #WATCH | PSLV-C58 XPoSat Mission launch | ISRO launches X-Ray Polarimeter Satellite (XPoSat) from the first launch-pad, SDSC-SHAR, Sriharikota in Andhra Pradesh. (Source: ISRO) pic.twitter.com/ws6Ik0Cdll — ANI (@ANI) January 1, 2024 × "XPoSat (X-ray Polarimeter Satellite) is the first dedicated scientific satellite from ISRO to carry out research in space-based polarisation measurements of X-ray emission from celestial sources. The Satellite configuration is modified from the IMS-2 bus platform. The Configuration of the mainframe systems are derived based on the heritage of IRS satellites. It carries two payloads namely POLIX (Polarimeter Instrument in X-rays) and XSPECT (X-ray Spectroscopy and Timing). POLIX is realized by Raman Research Institute and XSPECT is by Space Astronomy Group of URSC," said ISRO. As per ISRO, these are the XPoSat mission objectives XPoSat will measure the polarisation of X-rays coming from about 50 cosmic sources. Thomson Scattering in the energy band 8-30keV will be measured by POLIX payload. XPoSat will carry out long term spectral as well as temporal studies of cosmic X-ray sources. The XSPECT payload will make these measurements in the energy band 8-15keV It will also undertake polarisation and spectroscopic measurements of X-ray emissions from sources in space using POLIX and XSPECT. "The emission mechanism from various astronomical sources such as blackhole, neutron stars, active galactic nuclei, pulsar wind nebulae etc. originates from complex physical processes and are challenging to understand. While the spectroscopic and timing information by various space-based observatories provide a wealth of information, the exact nature of the emission from such sources still poses deeper challenges to astronomers," said ISRO. (With inputs from agencies)

ISRO successfully launches XPoSat on first day of New Year 2024

The Indian Space Research Organisation (ISRO) has successfully launched Gaganyaan Test Vehicle Development Flight Mission-1 test vehicle (TV-D1 Flight Test) on Saturday (Oct 21). The launch was kept on hold earlier this morning when ISRO made first attempt. At the time, the launch was aborted as on-board computers detected an anomaly, ISRO said. Within a matter of an hour, ISRO posted from its official account on social media platform X (formerly Twitter) that the&nbsp;anomaly had been identified and corrected.

After the lift-off, the Crew Module separated from the launch vehicle successfully. It then descended towards the ground using parachutes and splashed down in the Bay of Bengal off the coast of Sriharikota as it was intended.

"Mission Gaganyaan. TV D1 Test Flight is accomplished. Crew Escape System performed as intended. Mission Gaganyaan gets off on a successful note," ISRO posted after the successful launch.

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Mission Gaganyaan 
 
TV D1 Test Flight is accomplished. 
 
Crew Escape System performed as intended. 
 
Mission Gaganyaan gets off on a successful note. <a href="https://twitter.com/DRDO_India?ref_src=twsrc%5Etfw">@DRDO_India</a><a href="https://twitter.com/indiannavy?ref_src=twsrc%5Etfw">@indiannavy</a><a href="https://twitter.com/hashtag/Gaganyaan?src=hash&amp;ref_src=twsrc%5Etfw">#Gaganyaan</a>
— ISRO (@isro) <a href="https://twitter.com/isro/status/1715590345340432519?ref_src=twsrc%5Etfw">October 21, 2023</a></blockquote>
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The flight test vehicle abort mission was&nbsp;aimed at demonstrating performance of the Crew Escape system which will be part of the Gaganyaan mission. The aim was&nbsp;also to test safe landing in the Bay of Bengal after the launch.

TV-D1 is a liquid-propelled single state test vehicle. The Crew Escape System, which the test vehicle carried with it, is India's homegrown system which will be crucial for the safety of Indian astronauts.

Although it was launch of a&nbsp;test vehicle, it represents a major milestone as it is a step towards India's effort to send humans into space.

The Crew Escape System comprises of five types of quick-acting solid motors.

These are Crew Escape System Jettisoning Motor (CJM), High-altitude Escape Motor (HEM), Low-altitude Escape&nbsp;Motor (LEM), Low-altitude Pitch Motor (LPM) and High-altitude Pitch Motor (HPM).

A crew escape system is just like ejection seats in fighter jet planes. The system safeguards the astronauts in case a catastrophic error occurs during there spaceflight endangering the spacecraft they are travelling in.

It is an automatic system that is triggered by computer if it detects malfunctions or other issues moments after liftoff.

India has an ambitious aim of sending three astronauts into a 400-kilometre&nbsp;orbit around the Earth for three days. After the successful conclusion of that mission, India will join an elite club of nations that&nbsp;have sent astronauts into space.

 
You can now write for wionews.com and be a part of the community. Share your stories and opinions with us <a href="https://www.wionews.com/content-contribution-registration-form">here</a>.

 
 
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The Indian Space Research Organisation (ISRO) has successfully launched Gaganyaan Test Vehicle Development Flight Mission-1 test vehicle (TV-D1 Flight Test) on Saturday (Oct 21).

The Indian Space Research Organisation (ISRO) has successfully launched Gaganyaan Test Vehicle Development Flight Mission-1 test vehicle (TV-D1 Flight Test) on Saturday (Oct 21). The launch was kept on hold earlier this morning when ISRO made first attempt. At the time, the launch was aborted as on-board computers detected an anomaly, ISRO said. Within a matter of an hour, ISRO posted from its official account on social media platform X (formerly Twitter) that the anomaly had been identified and corrected. After the lift-off, the Crew Module separated from the launch vehicle successfully. It then descended towards the ground using parachutes and splashed down in the Bay of Bengal off the coast of Sriharikota as it was intended. "Mission Gaganyaan. TV D1 Test Flight is accomplished. Crew Escape System performed as intended. Mission Gaganyaan gets off on a successful note," ISRO posted after the successful launch. Mission Gaganyaan TV D1 Test Flight is accomplished. Crew Escape System performed as intended. Mission Gaganyaan gets off on a successful note. @DRDO_India@indiannavy#Gaganyaan — ISRO (@isro) October 21, 2023 × The flight test vehicle abort mission was aimed at demonstrating performance of the Crew Escape system which will be part of the Gaganyaan mission. The aim was also to test safe landing in the Bay of Bengal after the launch. TV-D1 is a liquid-propelled single state test vehicle. The Crew Escape System, which the test vehicle carried with it, is India's homegrown system which will be crucial for the safety of Indian astronauts. Although it was launch of a test vehicle, it represents a major milestone as it is a step towards India's effort to send humans into space. The Crew Escape System comprises of five types of quick-acting solid motors. These are Crew Escape System Jettisoning Motor (CJM), High-altitude Escape Motor (HEM), Low-altitude Escape Motor (LEM), Low-altitude Pitch Motor (LPM) and High-altitude Pitch Motor (HPM). A crew escape system is just like ejection seats in fighter jet planes. The system safeguards the astronauts in case a catastrophic error occurs during there spaceflight endangering the spacecraft they are travelling in. It is an automatic system that is triggered by computer if it detects malfunctions or other issues moments after liftoff. India has an ambitious aim of sending three astronauts into a 400-kilometre orbit around the Earth for three days. After the successful conclusion of that mission, India will join an elite club of nations that have sent astronauts into space. You can now write for wionews.com and be a part of the community. Share your stories and opinions with us here. WATCH WION LIVE HERE ×

After initial hiccup, ISRO successfully launches Gaganyaan TV-D1 test vehicle

The countdown for the second commercial launch of India's largest rocket LVM3 began at 8:30am on Saturday, at the Satish Dhawan Space Centre in Sriharikota, an official at Indian Space Research Organisation told WION.

During the 24-and-a-half-hour countdown, the final health checks of the rocket and satellite systems and fuel filling into the liquid and cryogenic stages of the rocket will be carried out.&nbsp;

Dubbed as 'LVM3-M3/OneWeb India-2 Mission', this will be the LVM3 rocket's sixth mission overall and its second mission to Low Earth orbit (between 400-2000km&nbsp;above earth).

ALSO READ -&nbsp;<a href="https://www.wionews.com/science/indias-largest-rocket-lvm3-to-perform-second-commercial-mission-on-march-26-574007">India's largest rocket LVM3 to perform second commercial mission on March 26</a>

Notably, this is also the shortest duration in which ISRO is carrying out two missions of the LVM3 rocket — on October 23, 2022 and March 26, 2022.

Such quick execution is being carried out in order to meet the timelines of the customer OneWeb, whose satellites are being launched.&nbsp;

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The integration, vehicle readiness <a href="https://twitter.com/hashtag/video?src=hash&amp;ref_src=twsrc%5Etfw">#video</a> for LVM3-M3 mission is out! 
 
Now that countdown has commenced, <a href="https://twitter.com/hashtag/weather?src=hash&amp;ref_src=twsrc%5Etfw">#weather</a> looks bright &amp; sunny, it's all go for lift-off at 9am tomo <a href="https://twitter.com/isro?ref_src=twsrc%5Etfw">@isro</a> <a href="https://twitter.com/OneWeb?ref_src=twsrc%5Etfw">@OneWeb</a> 
 
Can't wait to report from SDSC SHAR, after a 1.5month gap since SSLVD2 
🚀🚀🇮🇳🇮🇳🚀🚀 <a href="https://t.co/AMoCRzwkam">pic.twitter.com/AMoCRzwkam</a>
— Sidharth.M.P (@sdhrthmp) <a href="https://twitter.com/sdhrthmp/status/1639486210057043968?ref_src=twsrc%5Etfw">March 25, 2023</a></blockquote>
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OneWeb has been utilising the launch services of SpaceX, Arianespace and ISRO to place all its first generation constellation satellites in orbit. So far, OneWeb satellites have flown 17 times.&nbsp;ISRO will be carrying the 18th&nbsp;set on Sunday.

"We are one launch away from achieving global coverage. This last launch with ISRO/NSIL will mark over 600 satellites in space, which is the number needed to go commercially live," a OneWeb spokerperson told WION.

ALSO WATCH -&nbsp;ISRO Rocket Launch: Mission grants entry of LVM3 into commercial lounge service area

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The firm's services are&nbsp;already live for customers 24x7 in 50 degrees north latitude — Alaska, Canada, Greenland, UK and Northern Europe. By the end of this year, we plan to initiate services across the Globe, it was added.

This is a dedicated commercial mission being carried out through ISRO's commercial arm&nbsp;NSIL (NewSpace India Limited).

The rocket will carry&nbsp;36 OneWeb Gen-1 satellites with a total mass of 5,805 kg, into a 450 km circular Low Earth Orbit with an inclination of 87.4° degrees.&nbsp;&nbsp;

OneWeb is a UK-based firm being backed by India's Bharti Group. OneWeb aims to offer high-speed, low-latency internet connectivity from space via their constellation of satellites in Low Earth Orbit.&nbsp;

LVM3 is a three-stage vehicle with two S200 solid motors as first stage, L110 twin liquid engines as second stage and a final C25 cryogenic upper stage. This 43.5 m tall vehicle has a lift-off mass of 643tons.

ISRO said that the vehicle's&nbsp;cryogenic stage is uniquely designed to orient and re-orient in orthogonal direction to meet the customer requirements of injecting satellites precisely and with a gap to avoid collision.

Ejecting 36 satellites is a complex manoeuvre that ISRO carried out during the earlier OneWeb launch in October 2022 as well.

OneWeb had signed a pact with NSIL and ISRO for placing a total of 72 satellites in orbit (in two batches of 36).

This deal has raked in more than Rs 1000 crore (Rs 10 billion) revenue for the Indian Government-run space agency.

It also provides an opportunity for ISRO to demonstrate the capability and reliability of their largest rocket for offering commercial launch services. Until October 2022, ISRO's LVM3 or GSLV Mk3 rocket was being used only for fulfilling India's national missions such as Chandrayaan-2 and launching heavy satellites.

Notably, the LVM3 has performed successful launches in all its missions to date.&nbsp;

"Subject to all regulatory approvals being in place, we are confident of the commencement of our services later this year for India and have announced distribution agreements with Hughes to provide services" the OneWeb spokesperson told WION, when queried&nbsp;about service roll out in India.&nbsp; 
 
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The countdown for the second commercial launch of India's largest rocket LVM3 began at 8:30am on Saturday, at the Satish Dhawan Space Centre in Sriharikota, an official at Indian Space Research Organisation told WION.

The countdown for the second commercial launch of India's largest rocket LVM3 began at 8:30am on Saturday, at the Satish Dhawan Space Centre in Sriharikota, an official at Indian Space Research Organisation told WION. During the 24-and-a-half-hour countdown, the final health checks of the rocket and satellite systems and fuel filling into the liquid and cryogenic stages of the rocket will be carried out. Dubbed as 'LVM3-M3/OneWeb India-2 Mission', this will be the LVM3 rocket's sixth mission overall and its second mission to Low Earth orbit (between 400-2000km above earth). ALSO READ - India's largest rocket LVM3 to perform second commercial mission on March 26 Notably, this is also the shortest duration in which ISRO is carrying out two missions of the LVM3 rocket — on October 23, 2022 and March 26, 2022. Such quick execution is being carried out in order to meet the timelines of the customer OneWeb, whose satellites are being launched. The integration, vehicle readiness #video for LVM3-M3 mission is out! Now that countdown has commenced, #weather looks bright & sunny, it's all go for lift-off at 9am tomo @isro @OneWeb Can't wait to report from SDSC SHAR, after a 1.5month gap since SSLVD2 🚀🚀🇮🇳🇮🇳🚀🚀 pic.twitter.com/AMoCRzwkam — Sidharth.M.P (@sdhrthmp) March 25, 2023 × OneWeb has been utilising the launch services of SpaceX, Arianespace and ISRO to place all its first generation constellation satellites in orbit. So far, OneWeb satellites have flown 17 times. ISRO will be carrying the 18th set on Sunday. "We are one launch away from achieving global coverage. This last launch with ISRO/NSIL will mark over 600 satellites in space, which is the number needed to go commercially live," a OneWeb spokerperson told WION. ALSO WATCH - ISRO Rocket Launch: Mission grants entry of LVM3 into commercial lounge service area × The firm's services are already live for customers 24x7 in 50 degrees north latitude — Alaska, Canada, Greenland, UK and Northern Europe. By the end of this year, we plan to initiate services across the Globe, it was added. This is a dedicated commercial mission being carried out through ISRO's commercial arm NSIL (NewSpace India Limited). The rocket will carry 36 OneWeb Gen-1 satellites with a total mass of 5,805 kg, into a 450 km circular Low Earth Orbit with an inclination of 87.4° degrees. OneWeb is a UK-based firm being backed by India's Bharti Group. OneWeb aims to offer high-speed, low-latency internet connectivity from space via their constellation of satellites in Low Earth Orbit. LVM3 is a three-stage vehicle with two S200 solid motors as first stage, L110 twin liquid engines as second stage and a final C25 cryogenic upper stage. This 43.5 m tall vehicle has a lift-off mass of 643tons. ISRO said that the vehicle's cryogenic stage is uniquely designed to orient and re-orient in orthogonal direction to meet the customer requirements of injecting satellites precisely and with a gap to avoid collision. Ejecting 36 satellites is a complex manoeuvre that ISRO carried out during the earlier OneWeb launch in October 2022 as well. OneWeb had signed a pact with NSIL and ISRO for placing a total of 72 satellites in orbit (in two batches of 36). This deal has raked in more than Rs 1000 crore (Rs 10 billion) revenue for the Indian Government-run space agency. It also provides an opportunity for ISRO to demonstrate the capability and reliability of their largest rocket for offering commercial launch services. Until October 2022, ISRO's LVM3 or GSLV Mk3 rocket was being used only for fulfilling India's national missions such as Chandrayaan-2 and launching heavy satellites. Notably, the LVM3 has performed successful launches in all its missions to date. "Subject to all regulatory approvals being in place, we are confident of the commencement of our services later this year for India and have announced distribution agreements with Hughes to provide services" the OneWeb spokesperson told WION, when queried about service roll out in India. WATCH WION LIVE HERE You can now write for wionews.com and be a part of the community. Share your stories and opinions with us here.

Countdown begins for ISRO's launch of it largest LVM3 rocket

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