Exoplanets always arouse our curiosity, especially when it comes to super-Earths. These have a mass between the Earth and a giant planet but they can rarely harbor a form of life.
Sciences et Avenir tells us that researchers at the Massachusetts Institute of Technology (MIT) have discovered two new super-Earthsthis Wednesday, June 15. These are particularly interesting for their proximity to the earth (33 light years from Earth). According to the magazine, these two exoplanets are added to the 5000 already discovered and are part of the brown dwarfs. They are 1.2 to 1.5 larger than Earth and have a mass up to three times greater than our planet.
Researcher Michelle Kunimoto explains that these two exoplanets will object of in-depth studies.Indeed, their relative proximity to the Earth is a great advantage. She explains: “The two planets in this system are each considered among the best targets for the study of their atmosphere due to the brightness of their star. She adds:“These planets are fantastic test beds for such explorations. »
Exoplanets that cannot support life
As on the majority of super-earths, these two new brown dwarfs do not have favorable conditions for life. Indeed, their temperature seems to be between 280 and 430°C. However, the goal is to find other small planets around these two super-Earths. This discovery was made possible by many months of observations made using NASA's Transiting Exoplanet Survey Satellite (TESS) system. The two discovered superplanets are 31.220 billion kilometers from Earth. Thanks to their location close to a very dim star, in-depth observation will be possible. However, there is little chance of discovering any life there. Very close to their Sun, temperatures are between 280 and 430°C.“There could be more planets around HD 260655 […]. Hopefully we'll find more, and maybe one in the habitable zone,” commented Avi Shporer, one of the scientists involved in this amazing discovery!