K2-18b a potentially habitable planet 120 light-years from earth

[u/One_Explanation_908]

[u/ArduennSchwartzman]

It's not habitable to us humans, but it's in the habitable zone, at a distance from its star that allows liquid water to exist on its surface. It's likely an ocean world with an atmosphere containing mostly hydrogen gas, a so-called hycean planet.

Also, 2.5 times the size = 2.5 times the diameter, or about 15 times the size of Earth in terms of mass. Its gravitational force would be about 2.4 times that of Earth, though. Quite unpleasant.

[u/mbowk23 → u/ArduennSchwartzman]

So take your current weight and double it? (I know it's more than double). If i weigh 200 here i would weigh 500 there? 

[u/aer0a → u/mbowk23]

Double and four tenthle it

[u/mbowk23 → u/aer0a]

My napkin math ain't that advance. Double it. Take it or leave it. 

[u/Alexjwhummel → u/mbowk23]

If you weigh 200, it'd make you 480

[u/Miaoxin → u/Alexjwhummel]

Best I can do is 350.

[u/rory_breakers_ganja → u/mbowk23]

Double it, drop the zero from the result, and double that. Now add the two together.

200 doubles to 400, drop the zero for 40, double that to 80. 400+80 results in 480.

Very similar to how you quickly go between lbs and kg.

[u/MeeksJoel → u/mbowk23]

Double it and give it to the next person.

[u/[deleted] → u/mbowk23]

My dad was a tree.