If an exoplanet like Kepler 442b, the most likely to be habitable exoplanet, has a mass 2.34x that of earth, would the gravity of the planet be 2.34x that of earth as well? Also, how would this affect humans if they were to travel there?

Question

If an exoplanet like Kepler 442b, the most likely to be habitable exoplanet, has a mass 2.34x that of earth, would the gravity of the planet be 2.34x that of earth as well? Also, how would this affect humans if they were to travel there?

In: Physics

Answer 1

The gravity of Kepler 442b is about 30% stronger than Earth (assuming it has about the same kind of environment as ours). It would certainly feel heavy, and it would cause some major wear-and-tear on our bodies that didn’t evolve with that kind of pressure in mind. It could be a lot colder than Earth, too, which could cause some other issues, and the axial tilt is probably much smaller as well, so it wouldn’t have anything like Earth’s seasons.