Joel Kontinen
"An international group of astronomers discovered the planet using NASA's Transiting Exoplanet Survey Satellite (TESS) earlier this year in the constellation Hydra, about 31 light-years from Earth." That corresponds to 10 trillion kilometres per year.
However, the planet that is called GJ 357 d stays quite near its sun. It is believed to be roughly twice the size of Earth and harbour six times Earth's mass. "Located in the outer edge of its host star's habitable zone, scientists believe that this super-Earth could have water on its surface."
GJ 357 b, a "hot Earth" that orbits 11 times closer to its host star than Mercury does to the sun and likely has a surface temperature of around 254 degrees Celsius or 490 degrees Fahrenheit.
So; it's not a healthy place to stay, unlike the Earth.
Ssource:
Rabie, Passant, 2019.Could There Be Life? This Newfound 'Super-Earth' May Be Habitable. Space com (31 July).
Posts
