NASA's latest spacecraft – TESS – to catch unknown planets has confirmed that it has found a third unknown planet located outside our Solar System, only three months after the start of the mission.
The new planet around its star orbits only 53 light-years from our Solar System, and scientists hope to be able to explore it more closely and discover what information is kept by its atmosphere. The research aircraft is doing the same way as Kepler, who remained without fuel in October 2018, and scans the cosmos in search of stars whose light is disturbing the planets surrounding them.
TESS, however, has a different task than its predecessor, and, unlike Kepler, who has been dealing with only one part of the cosmos since the start of the mission, scans larger areas to find as many stars as possible. The worlds that find it so often are too far for any research to be possible, and TESS focuses most on the stars that are relatively close to the Earth. So scientists can look at them from the mother planet, and to begin with the help of a telescope, they try to determine their mass, and the path they are moving.
With each new discovery, there is an increase in the possibility of accessing new information, and the third planet that TESS locates is more interesting than the previous two, since it circles the so-called "dwarf star", which is smaller, and emits a weaker light than our Sun. On the other hand, the newly discovered planet around the star circles at a greater distance, and it takes 36 earth days to go around a circle, which means it's pretty cold.
Scientists speculate that another planet of the size of the Earth could circulate around this star, but this has not yet been confirmed, although some data that support this theory has already arrived from the aircraft. If this assumption is true, it would be the first Earth-size planet discovered by TESS, and scientists would be able to come to significant conclusions after observing a planet of the size of the Earth that orbits in slightly different conditions.