NASA has scripted history by discovering&nbsp;six unknown worlds outside our Solar System, which has pushed the number of exoplanets hunted so far to 5,502.

The new find is likely to further expand the understanding of life beyond Earth and the Solar System.

In 1992, the scientists&nbsp;had found the first exoplanets&nbsp;- which were twin planets, Poltergeist and Phobetor - which orbited the pulsar PSR B1257+12.&nbsp;

<h2>What are these six exoplanets?</h2>

The six new exoplanets discovered are &nbsp;HD 36384 b, TOI-198 b, TOI-2095 b, TOI-2095 c, TOI-4860 b, and MWC 758 c.

Also Read:&nbsp;<a href="https://www.wionews.com/science/strictly-speaking-earth-is-not-revolving-around-the-sun-currently-heres-what-it-means-740359">Strictly speaking, Earth is not revolving around the Sun currently. Here's what it means</a>

HD 36384 b is a type of super-Jupiter which orbits a huge M giant star.' The scientists discovered this planet with the help of the radial velocity method.

TOI-198 b has been identified as a rocky planet which orbits on the habitable zone's innermost edge around the M dwarf star. The scientists used the transit method to detect this planet.&nbsp;

Meanwhile, TOI-2095 b and&nbsp;TOI-2095 c emerged as large and hot super-Earths which have been orbiting the same M dwarf star.&nbsp;

Watch:&nbsp;Scientists say the Earth's core is behaving oddly. Here's why

<div class="videoWrapper trancodeVideo"><iframe allowfullscreen="" autoplay="1" class="includeVideo" frameborder="0" height="350" src="https://www.wionews.com/videos/scientists-say-the-earths-core-is-behaving-oddly-heres-why-739062/embed" style="width:100%;max-width:560px;" width="560"></iframe></div>

Even though they are being called super-Earth, they share more similarity with Venus.&nbsp;

TOI-4860 b is a “hot Jupiter" or Jupiter-sized gas giant which orbits an M dwarf star. The planet completes an orbit every 1.52 days which means it is close to its star.

MWC 758 c is a type of giant protoplanet which has been orbiting a very young star. There is a protoplanetary disk on this star which is a rotating disc of dust and gas and can surround a young star.

When the scientists discovered the planet using direct imaging, it was discovered carving spiral arms into the protoplanetary disk of the star.&nbsp;

(With inputs from agencies)

NASA has scripted history by discovering six unknown worlds outside our Solar System, which has pushed the number of exoplanets hunted so far to 5,502. The new find is likely to further expand the understanding of life beyond Earth and the Solar System.

NASA has scripted history by discovering six unknown worlds outside our Solar System, which has pushed the number of exoplanets hunted so far to 5,502. The new find is likely to further expand the understanding of life beyond Earth and the Solar System. In 1992, the scientists had found the first exoplanets - which were twin planets, Poltergeist and Phobetor - which orbited the pulsar PSR B1257+12. What are these six exoplanets? The six new exoplanets discovered are HD 36384 b, TOI-198 b, TOI-2095 b, TOI-2095 c, TOI-4860 b, and MWC 758 c. Also Read: Strictly speaking, Earth is not revolving around the Sun currently. Here's what it means HD 36384 b is a type of super-Jupiter which orbits a huge M giant star.' The scientists discovered this planet with the help of the radial velocity method. TOI-198 b has been identified as a rocky planet which orbits on the habitable zone's innermost edge around the M dwarf star. The scientists used the transit method to detect this planet. Meanwhile, TOI-2095 b and TOI-2095 c emerged as large and hot super-Earths which have been orbiting the same M dwarf star. Watch: Scientists say the Earth's core is behaving oddly. Here's why Even though they are being called super-Earth, they share more similarity with Venus. TOI-4860 b is a “hot Jupiter" or Jupiter-sized gas giant which orbits an M dwarf star. The planet completes an orbit every 1.52 days which means it is close to its star. MWC 758 c is a type of giant protoplanet which has been orbiting a very young star. There is a protoplanetary disk on this star which is a rotating disc of dust and gas and can surround a young star. When the scientists discovered the planet using direct imaging, it was discovered carving spiral arms into the protoplanetary disk of the star. (With inputs from agencies)

NASA spots six alien worlds rotating beyond Solar System, two are 'hot super-Earths'

The Kepler space telescope has been able to identify the majority of the exoplanets, which is more than 5,500 in total. 
 
However, NASA's Transiting Exoplanet Survey Satellite (TESS) has been adding more alien worlds to the ever-increasing planetary catalogue of the cosmos. 
 
With the help of statistical methods to look through large quantities of data of TESS, a group of scientists, headed by University of New South Wales' Ph.D. student Priyashkumar Mistry, discovered eight new exoplanets. 
 
As per NASA, each one of these newly-discovered planets is a "super-Earth", which is a type of exoplanet that is bigger than Earth but smaller compared to Neptune.

ALSO READ |&nbsp;<a href="https://www.wionews.com/science/scientists-to-delve-deep-into-mysterious-signals-from-hell-like-exoplanet-using-james-webb-telescope-649138">This 'hell-like' exoplanet has been sending mysterious signals. JWST will now help find out why</a>

Nearly 400 exoplanets have been confirmed by TESS to date, and 6,977 planets await confirmation. The nearby stars are observed by the satellite, and the dips and fluctuations in their brightness are noted. 
 
If such dips are spotted, they indicate that something crossed between Earth and the star, which can be a new exoplanet. 
 
"If this orbital motion ever comes between us and the star we will observe a dip in the brightness of that observed star. This is what we call a transit," said Mistry, while speaking to Space.com. 
 
The Validation of Transiting Exoplanets using Statistical Tools (VaTEST) project was used by Mistry and his team for identifying anomalies, which helped in detecting the presence of exoplanets in the data of TESS.

<h2>Importance of statistical tools</h2>

Only the transiting exoplanets do not cause such dips, it can also be a result of a star orbiting another star (binary system) which may have generated a transit-like signal. 
 
Mistry stated that the transit method only helps in getting the radius of an orbiting body. Generally, a method called radial velocity (RV) is used to understand the mass of a transiting object.

WATCH |&nbsp;European Space Agency released first images taken by Euclid's telescope

<div class="videoWrapper trancodeVideo"><iframe allowfullscreen="" autoplay="1" class="includeVideo" frameborder="0" height="350" src="https://www.wionews.com/videos/european-space-agency-released-first-images-taken-by-euclids-telescope-656604/embed" style="width:100%;max-width:560px;" width="560"></iframe></div>

It can take a lot of time to detect the RV signal as astronomers keep on observing just one star, especially if the exoplanet has a long orbital period. 
 
However, Mistry and his team were provided by VaTEST with another means to confirm if these transiting events were a result of orbiting exoplanets. 
 
"The tool takes in the transit data and some inputs such as transit depth, period, TESS identifier, etc. Then based on that it starts fitting different models on the data and performs some probability calculations. And then finally it calculates False Positive Probability (FPP), if it turns out to be &lt; 1% then we can validate that transit signal as a planetary transit," Mistry stated.

(With inputs from agencies) 
&nbsp;

The Kepler space telescope has been able to identify the majority of the exoplanets, which is more than 5,500 in total. However, NASA's Transiting Exoplanet Survey Satellite (TESS) has been adding more alien worlds to the ever-increasing planetary catalogue of the cosmos.

The Kepler space telescope has been able to identify the majority of the exoplanets, which is more than 5,500 in total. However, NASA's Transiting Exoplanet Survey Satellite (TESS) has been adding more alien worlds to the ever-increasing planetary catalogue of the cosmos. With the help of statistical methods to look through large quantities of data of TESS, a group of scientists, headed by University of New South Wales' Ph.D. student Priyashkumar Mistry, discovered eight new exoplanets. As per NASA, each one of these newly-discovered planets is a "super-Earth", which is a type of exoplanet that is bigger than Earth but smaller compared to Neptune. ALSO READ | This 'hell-like' exoplanet has been sending mysterious signals. JWST will now help find out why Nearly 400 exoplanets have been confirmed by TESS to date, and 6,977 planets await confirmation. The nearby stars are observed by the satellite, and the dips and fluctuations in their brightness are noted. If such dips are spotted, they indicate that something crossed between Earth and the star, which can be a new exoplanet. "If this orbital motion ever comes between us and the star we will observe a dip in the brightness of that observed star. This is what we call a transit," said Mistry, while speaking to Space.com. The Validation of Transiting Exoplanets using Statistical Tools (VaTEST) project was used by Mistry and his team for identifying anomalies, which helped in detecting the presence of exoplanets in the data of TESS. Importance of statistical tools Only the transiting exoplanets do not cause such dips, it can also be a result of a star orbiting another star (binary system) which may have generated a transit-like signal. Mistry stated that the transit method only helps in getting the radius of an orbiting body. Generally, a method called radial velocity (RV) is used to understand the mass of a transiting object. WATCH | European Space Agency released first images taken by Euclid's telescope It can take a lot of time to detect the RV signal as astronomers keep on observing just one star, especially if the exoplanet has a long orbital period. However, Mistry and his team were provided by VaTEST with another means to confirm if these transiting events were a result of orbiting exoplanets. "The tool takes in the transit data and some inputs such as transit depth, period, TESS identifier, etc. Then based on that it starts fitting different models on the data and performs some probability calculations. And then finally it calculates False Positive Probability (FPP), if it turns out to be < 1% then we can validate that transit signal as a planetary transit," Mistry stated. (With inputs from agencies)

Alien worlds: NASA's telescope hunts down 8 'super-Earths' to solve cosmic puzzle

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NASA spots six alien worlds rotating beyond Solar System, two are 'hot super-Earths'

Alien worlds: NASA's telescope hunts down 8 'super-Earths' to solve cosmic puzzle