We can live on other planets.

The Japan Astronomical Society has published the finding of a super-Earth-type exoplanet that orbits its star within the edges of the habitable zone.

The star is a red dwarf and is located about 37 light years from Earth, the exoplanet is called Ross 508 b and is larger than our planet, it has about four Earth masses, this world has an electric orbit so in part of its one orbit is within the habitable zone and the other is outside, all in just 11 days, which is what a year lasts on this world.

Scientists believe that the super-earths meet the ideal conditions for life to arise in it, at the moment we do not know if this world has liquid water on its surface or what type of atmosphere it has, these are tasks to study in the future and perhaps Ross 508 b is a good target for the James webb space telescope.

The question is whether we can survive on a super-earth, because it seems evident that gravity would be greater than that of Earth, but be careful that it has four times the mass of the Earth, it does not mean that its surface gravity is four times that of Earth, it influences that. also the density, for example, Saturn has about 95 Earth masses, but its gravity is only slightly greater than that of our planet.

A person weighing 80 kilos on earth on Saturn would weigh 85.2 kilograms, also the earth is the densest planet in the solar system, so this world, even though it is rocky, could be equal to or even less dense than the earth and therefore not have too high gravity, what we do know is the gravity that humans who want to populate another world could withstand and I'm not talking about the G-forces that a pilot supports those forces last a short time and can be much greater since the pilot he is seated and must only try not to lose consciousness in order to maintain control of the ship.

The gravity that a human could withstand to move and do daily tasks on another planet, the maximum to move would be four and a half times Earth's gravity and to withstand that maximum you would also need to have muscular strength similar to that of a weight lifter , since that force of gravity would be constant, the physical limit would be about 10 g or 10 times the force of gravity on Earth, you could survive lying down at about 10 g but any attempt to get up would be impossible, and if you tried to walk you could break your bones.

With that gravity a human arm that weighs on average about 10 kilos, in that world of 10g would weigh 100 kilos, each of your fingers would be like lifting a dumbbell weighing between one and two and a half kilos, at the moment we do not know if there are life on Ross 508 V but the greater gravity would not be a problem for the development of life, for aquatic animals gravity is not an important factor and land animals could prosper although they would be much stronger than those on our planet.

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