They were found using the Transiting Exoplanet Survey Satellite of NASA which was launched in April 2018 to search for habitable worlds in the nearby universe Three new planets 73 light-years away in a system called TOI 270 (for TESS Object of Interest) that uses data from the satellite. They were discovered thanks to the periodic break-ins in the starlight caused by every circulating world. The three planets are located in the southern constellation Pictor and have very fast orbits around TOI 270, a dwarf star.
They are among the smallest and narrowest exoplanets ever discovered, but it is unlikely that any of them will be habitable despite its relatively warm environment. Temperatures: Their atmospheres are probably too thick and dense. These include a small, rocky planet slightly larger than the Earth and two gaseous planets about twice the size of the Earth. Their discovery was described in an article in Nature Astronomy .
The Implications: These planets could help us understand the "missing link" between small rocky plants like Earth and huge, icy worlds like Neptune, according to Maximilian Günther Postdoc at the Kavli Institute for Astrophysics and Space Research at MIT , the main author of the work.
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