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located 40 light-years away. This artist's conception assumes that the planet retains a tenuous atmosphere. Future follow-up observations will clarify what kind of atmosphere the planet actually retains.A planet just 40 light-years from the solar system has been discovered to be tantalizingly similar to Earth and Venus—and it’s gone straight onto the “to-do” list for the James Webb Space Telescope.
What researchers don’t yet know is whether it has an atmosphere. JWST will have to find out—and that will be critical to whether this exoplanet is Earth-like or more of an “evil twin” like Venus.Gliese 12 b is an exoplanet, the name astronomers give to any planet found orbiting a star other than our sun. It orbits very close to a red dwarf star called Gliese 12, which is in the constellation of Pisces in the night sky.
For now, the team is thinking of Gliese 12 b as an “evil twin,” more like Venus than like Earth—but they cannot rule out the possibility that Gliese 12 b is an “Earth twin” with liquid water on its surface.around other stars in our Milky Way galaxy that may be habitable, but only a handful of worlds like it are candidates for an “Earth 2.0,” and very few are closer to the solar system.our solar system.
However, atmospheres trap heat and can change the actual surface temperature substantially, according to the researchers.
Exoplanet Proxima Centauri TRAPPIST Exoplanets Extraterrestrials Aliens Astrobiology Earth Habitable Planets
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