Rolex, Omega, Tag Heuer and more': Top 7 affordable luxury watches in the world

Rolex Submariner

Omega Seamaster

TAG Heuer Carrera

Omega Speedmaster

Rolex Datejust

Hublot Big Bang

Breitling Navitimer

The Rolex Submariner remains the most searched watch model, with around 246,000 global searches per month. Initially designed as a diver’s tool in the 1950s, the Submariner has evolved into a widely recognised model across all watch categories.

Can't afford a Rolex? Baltic's $603 watch could replace the $9,200 'Submariner'

Classic Dive Watch Styling

Sensible Water Resistance

Robust Construction

Functional and Simple Dial

Reliable Automatic Movement

Thoughtful Caseback Detail

Affordable Price and Options

The Baltic Aquascaphe draws clear inspiration from traditional dive watches, including the no-date Rolex Submariner. It features a time-only layout, a 60-minute unidirectional bezel, and water resistance suitable for most recreational diving needs.

'Alien megastructures': How a binary star system could hold the key to stable dyson spheres

The Dyson Sphere Concept 

The Fatal Flaw

The Search for Stability 

Binary Star Systems and Stability

A Stable Configuration for Dyson Spheres 

Key Conditions for Stability

 Extraterrestrial Civilisations 

The idea of Dyson spheres, first proposed by physicist Freeman Dyson in the 1960s, involves creating massive structures that enclose a star to capture its energy. Such spheres would provide an enormous surface area and be capable of harnessing vast amounts of solar power, solving the energy needs of an advanced civilisation.

'Rs 60 crore price tag': How Jacob & Co created a diamond watch named after an Indian King

Conceptualisation and Design

Gem Selection and Setting

Movement Engineering

Structural Design

Limited Editions and Variants

What is Lemon Ice Water Face Wash Trend?

Final Presentation

Jacob Arabo envisioned a watch that seamlessly integrates large, high-quality diamonds with intricate watchmaking. The design process involved numerous iterations to achieve a harmonious balance between aesthetics and functionality.

A new short documentary released by the European Space Agency (ESA) raises concerns about the increasing volume of debris orbiting Earth. Titled&nbsp;"Space Debris: Is it a Crisis?", the eight-minute film opens by stating that around 70 per cent of the approximately 20,000 satellites launched since the beginning of the space age remain in orbit. These are joined by hundreds of millions of smaller fragments created through collisions, explosions, and deliberate destruction.
The documentary examines the potential consequences of the rising number of satellite constellations, such as those deployed for global internet services. It notes that the increase in such constellations will likely add to the already growing population of orbital debris, as additional fragments are produced during launches and as non-operational satellites remain in space without retrieval mechanisms.
ESA&rsquo;s film uses data and orbital models to explore how debris can affect active satellites. Even small fragments, due to the high speeds involved in orbit, can significantly damage functioning spacecraft. In the event of a collision between two satellites, the consequences could be severe. The film also acknowledges that some debris re-enters Earth&rsquo;s atmosphere in an uncontrolled manner.
The documentary points out that different orbital zones face different levels of risk, with low Earth orbit&mdash;home to satellites used for communication, navigation, and climate monitoring&mdash;particularly vulnerable.
While discussing potential mitigation strategies, the film warns against hasty actions. It calls for a more considered approach to ensure that long-term sustainability is not undermined by short-term fixes. ESA underlines the complexity of addressing the debris issue without shifting the burden elsewhere.

The documentary points out that different orbital zones face different levels of risk, with low Earth orbit—home to satellites used for communication, navigation, and climate monitoring—particularly vulnerable.

A new short documentary released by the European Space Agency (ESA) raises concerns about the increasing volume of debris orbiting Earth. Titled "Space Debris: Is it a Crisis?", the eight-minute film opens by stating that around 70 per cent of the approximately 20,000 satellites launched since the beginning of the space age remain in orbit. These are joined by hundreds of millions of smaller fragments created through collisions, explosions, and deliberate destruction. The documentary examines the potential consequences of the rising number of satellite constellations, such as those deployed for global internet services. It notes that the increase in such constellations will likely add to the already growing population of orbital debris, as additional fragments are produced during launches and as non-operational satellites remain in space without retrieval mechanisms. ESA’s film uses data and orbital models to explore how debris can affect active satellites. Even small fragments, due to the high speeds involved in orbit, can significantly damage functioning spacecraft. In the event of a collision between two satellites, the consequences could be severe. The film also acknowledges that some debris re-enters Earth’s atmosphere in an uncontrolled manner. The documentary points out that different orbital zones face different levels of risk, with low Earth orbit—home to satellites used for communication, navigation, and climate monitoring—particularly vulnerable. While discussing potential mitigation strategies, the film warns against hasty actions. It calls for a more considered approach to ensure that long-term sustainability is not undermined by short-term fixes. ESA underlines the complexity of addressing the debris issue without shifting the burden elsewhere.

ESA new short film investigates impact of increasing orbital debris

Axiom Space is set to deploy its first two orbiting data centre nodes in low Earth orbit before the end of 2025. These initial satellites, ODC 1 and ODC 2, will mark the company&rsquo;s entry into the development of in-space cloud computing infrastructure.
The data centre nodes will be integrated with Kepler Communications&rsquo; upcoming optical relay constellation. Kepler, a Canada-based company, is planning to begin launches for its constellation in late 2025. Each of the 10 planned Kepler satellites will weigh approximately 260 kilograms, with two allocated for Axiom's data centre payloads.
The orbital data centres are designed to process Earth-observation data using artificial intelligence and machine learning directly in space. This approach aims to reduce the latency associated with transmitting data to Earth-based stations for processing and to improve bandwidth efficiency by only transmitting relevant data.
Currently, most satellite data is downlinked to ground stations for analysis, which can introduce delays and raise security concerns. By processing information in orbit, Axiom aims to minimise the risk of data interception and streamline the transfer of essential insights to end users.
The company&rsquo;s orbital data centre concept expands on earlier plans to include such capabilities on its future space station, scheduled for launch in 2027. According to Axiom, the new distributed approach&mdash;leveraging hosted payloads on third-party satellites&mdash;will support the delivery of cloud services to global clients.
Axiom has previously tested a smaller-scale computing payload, based on Amazon Web Services&rsquo; Snowcone device, aboard the International Space Station. A larger system, known as Data Centre Unit-1 (AxDCU-1), is due for launch soon, intended to validate hardware and software performance in preparation for the full deployment of ODCs.
Jason Aspiotis, Axiom Space&rsquo;s global director of in-space data and security, stated that the deployment of the first two nodes accelerates the company&rsquo;s broader plan to establish multiple free-flying computing units in orbit to meet increasing global demand.
The data centres will be linked to Kepler&rsquo;s network via high-speed 2.5 Gbps optical links, allowing for communication with other satellites and terrestrial data facilities.
Despite the progress, developers must still address technical challenges, such as protecting electronics from space radiation, which can significantly affect the durability of computing hardware in orbit.

The orbital data centres are designed to process Earth-observation data using artificial intelligence and machine learning directly in space

Axiom Space is set to deploy its first two orbiting data centre nodes in low Earth orbit before the end of 2025. These initial satellites, ODC 1 and ODC 2, will mark the company’s entry into the development of in-space cloud computing infrastructure. The data centre nodes will be integrated with Kepler Communications’ upcoming optical relay constellation. Kepler, a Canada-based company, is planning to begin launches for its constellation in late 2025. Each of the 10 planned Kepler satellites will weigh approximately 260 kilograms, with two allocated for Axiom's data centre payloads. The orbital data centres are designed to process Earth-observation data using artificial intelligence and machine learning directly in space. This approach aims to reduce the latency associated with transmitting data to Earth-based stations for processing and to improve bandwidth efficiency by only transmitting relevant data. Currently, most satellite data is downlinked to ground stations for analysis, which can introduce delays and raise security concerns. By processing information in orbit, Axiom aims to minimise the risk of data interception and streamline the transfer of essential insights to end users. The company’s orbital data centre concept expands on earlier plans to include such capabilities on its future space station, scheduled for launch in 2027. According to Axiom, the new distributed approach—leveraging hosted payloads on third-party satellites—will support the delivery of cloud services to global clients. Axiom has previously tested a smaller-scale computing payload, based on Amazon Web Services’ Snowcone device, aboard the International Space Station. A larger system, known as Data Centre Unit-1 (AxDCU-1), is due for launch soon, intended to validate hardware and software performance in preparation for the full deployment of ODCs. Jason Aspiotis, Axiom Space’s global director of in-space data and security, stated that the deployment of the first two nodes accelerates the company’s broader plan to establish multiple free-flying computing units in orbit to meet increasing global demand. The data centres will be linked to Kepler’s network via high-speed 2.5 Gbps optical links, allowing for communication with other satellites and terrestrial data facilities. Despite the progress, developers must still address technical challenges, such as protecting electronics from space radiation, which can significantly affect the durability of computing hardware in orbit.

'Orbiting data centre': Axiom Space sets stage for first cloud among the stars by late 2025

A whale shark measuring 60 feet in length has been observed in the Pacific Ocean, making it the largest specimen of its kind ever recorded in the region, according to a report from&nbsp;Animals Around the Globe. The sighting has drawn interest from marine scientists, as the species typically grows to between 18 and 33 feet, with rare individuals reaching up to 40 feet.
Whale sharks are the largest fish in the world and are known for their slow movements and filter-feeding behaviour. They consume plankton, krill, and small fish by swimming with their mouths open. Despite their size, they pose no threat to humans and are often encountered by divers in tropical and warm-temperate waters.
This particular whale shark was spotted near coastal areas commonly frequented by the species. Researchers consider the sighting an opportunity to further study aspects of whale shark biology, including feeding habits, migratory routes, and general behaviour. Given its exceptional size, the discovery is regarded as an important data point in understanding the species&rsquo; growth potential and habitat range.
Whale sharks contribute to marine ecosystems by helping regulate populations of plankton and small fish, which in turn supports the health of coral reefs and balances food webs. Their long migrations across global waters, including between the Philippines and the Gulf of Mexico, have been partially tracked through satellite tagging.
However, the species faces several conservation challenges. Overfishing, accidental capture, marine pollution, and habitat degradation continue to affect their populations. Their slow reproductive rates make them particularly vulnerable to population decline.
Marine conservationists are pushing for greater protection through marine reserves, regulatory frameworks, and public education. Advances in technology such as satellite tracking and underwater monitoring are enabling more detailed studies of whale sharks, helping inform conservation strategies aimed at preserving their numbers and habitats.

This particular whale shark was spotted near coastal areas commonly frequented by the species.

A whale shark measuring 60 feet in length has been observed in the Pacific Ocean, making it the largest specimen of its kind ever recorded in the region, according to a report from Animals Around the Globe. The sighting has drawn interest from marine scientists, as the species typically grows to between 18 and 33 feet, with rare individuals reaching up to 40 feet. Whale sharks are the largest fish in the world and are known for their slow movements and filter-feeding behaviour. They consume plankton, krill, and small fish by swimming with their mouths open. Despite their size, they pose no threat to humans and are often encountered by divers in tropical and warm-temperate waters. This particular whale shark was spotted near coastal areas commonly frequented by the species. Researchers consider the sighting an opportunity to further study aspects of whale shark biology, including feeding habits, migratory routes, and general behaviour. Given its exceptional size, the discovery is regarded as an important data point in understanding the species’ growth potential and habitat range. Whale sharks contribute to marine ecosystems by helping regulate populations of plankton and small fish, which in turn supports the health of coral reefs and balances food webs. Their long migrations across global waters, including between the Philippines and the Gulf of Mexico, have been partially tracked through satellite tagging. However, the species faces several conservation challenges. Overfishing, accidental capture, marine pollution, and habitat degradation continue to affect their populations. Their slow reproductive rates make them particularly vulnerable to population decline. Marine conservationists are pushing for greater protection through marine reserves, regulatory frameworks, and public education. Advances in technology such as satellite tracking and underwater monitoring are enabling more detailed studies of whale sharks, helping inform conservation strategies aimed at preserving their numbers and habitats.

Scientists discover largest fish ever in the depths of Pacific Ocean

Your favourite colour might be an illusion! Guess which one is it?

Purple Is Not Part of the Light Spectrum 

Purple Is a Non-Spectral Colour 

The Brain Creates Purple by Mixing Inputs 

Other Non-Spectral Colours Exist Too 

Why Purple Is Absent in Rainbows 

 Invisible Colours Lie Beyond Human Perception

Space Agencies Use Broader Light Detection 

Unlike red, green, or blue, purple does not correspond to a single wavelength of visible light. It does not appear in the natural spectrum produced when light is split by a prism or seen in a rainbow.


'300 million light-years away’: Scientists discover a giant black hole awakening from deep sleep in the Virgo constellation

Black Hole in Virgo Galaxy

 Initial Signs Noticed in 2019

X-Ray Bursts Detected in 2023

Galaxy’s Core Now Classified as Active

Unusual Nature of Flares Raises Questions

Star Disruption Ruled Out as Cause

Further Observations Required

A previously dormant black hole located in the galaxy SDSS1335+0728, situated in the Virgo constellation around 300 million light years from Earth, is now emitting regular X-ray flares, according to a new study published in Nature Astronomy.


Katy Perry and Jeff Bezos' wife to visit space tonight! Here's how you can watch it live

Blue Origin Schedules All-Female Launch

Crew 

Flight Details and Timing

Brief Suborbital Journey Planned

Historic Context of the Mission

Cost of the Experience Remains Undisclosed

Public Broadcast

Blue Origin is set to conduct a suborbital spaceflight on Monday, 14 April, featuring an all-female crew. The flight will depart from the company’s West Texas launch site using its reusable New Shepard rocket.

Katy Perry and Blue Origin’s all-women crew debut custom flight suits by Monse

All-Women Crew

Designer Flight Suits

Lauren Sánchez 

Standard Blue Origin Suits

Design Inspired by Ski and Motocross Outfits

Suits Balance Form and Function

Launch Timing and Viewing Details

Blue Origin is scheduled to launch an all-female crew on its New Shepard suborbital rocket on Monday, 14 April. The flight will include singer Katy Perry, journalist Gayle King, bioastronautics researcher Amanda Nguyen, former NASA rocket scientist Aisha Bowe, film producer Kerianne Flynn, and flight organiser Lauren Sánchez.


'2.5 billion light-years away': NASA's Hubble Telescope discovers unprecedented image of quasar 3C 273

'2.5 billion light-years away': NASA's Hubble Telescope discovers a quasar near a supermassive black hole

Supermassive Black Hole

Unexpected Features Surround the Core

Galactic Cannibalism May Be at Work

300,000 Light-Years

Quasars Are Not Isolated Light Sources

Next Steps with the James Webb Telescope

NASA’s Hubble Space Telescope has delivered a new image of the quasar 3C 273, located more than 2.5 billion light-years away. Using its Space Telescope Imaging Spectrograph (STIS) as a coronagraph, Hubble was able to block out the quasar’s core brightness, allowing astronomers to study its surroundings in greater detail.

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Zee News Rajasthan

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Tarun Mishra

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Rajasthan News in Hindi: In-depth coverage of Rajasthan Crime, Political News, Education, Rajasthan Weather Update and Latest Rajasthan News on Zee News Rajasthan.

Rajasthan News in Hindi: राजस्थान समाचार, राजस्थान न्यूज़, Rajasthan Political, Crime, Education News - ZEE Rajasthan News