NASA Tess discovers new exoplanet and six stars exploding

NASA started the year off right, getting images of Ultima Thule, the most distant object to be observed, and successfully inserting the Osiris-Rex into the world. orbit of the asteroid Bennu, an asteroid dating back about 4 billion years ago. which can help us better understand our solar system. And now, with a TESS telescope, launched by SpaceX in April 2018, has confirmed the discovery of a new planet and explosions of stars.

The exoplanet (planet that revolves around a star other than the Sun) calls HD 21749b. and was clbadified as a "sub-Neptune", about three times larger than Earth and about 23 times larger.

The new world takes about 36 days to complete its orbit around its star, at a temperature close to it. of 149 ° C, which is relatively cold for a planet so close to a star. It is denser than our Neptune, but NASA does not expect it to be rocky.

The discovery was discussed at the 233rd meeting of the American Astronomical Society (ASA). Chelsea Huang, an MIT researcher working on the data collected by the satellite, said that it was the eighth exoplanet discovered by TESS and that there were "20 to 30" other discoveries potential "almost ready to be published." 19659002] NASA's equipment looks for new worlds by examining about 200,000 stars and detecting any noticeable change in brightness.

By the middle of 2019, he will observe the same area of ​​the sky, the southern hemisphere, then will turn to the northern hemisphere and begin another phase of observation. One of the researchers spoke of a possible extended mission, which would last from 2020 to 2022, in which the satellite would examine areas of the sky that had not been seen during the first years of operation

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Tech [19659008] Dec 26