Imagine how strong they are at ~30% higher gravity than earth. And our best would be couch potatoes in their Olympics. Gravity is such a drag

My starship is in the shop - what about Uber?

What a life form with such a high gravity would look like.

Gravitational force is proportional to the mass, and inversely proportional to the square of the distance (from the centre of mass). So it's 8.6/(2.6*2.6)=1.3 times as strong as our gravity. That's felt by something on a solid surface in a gaseous atmosphere, of course; in water, if you're something that basically floats, it makes no difference.

But it would basically have little effect - things might not be able to grow quite as tall, run as fast, and so on (limits on what stresses legs can stand before they break too often, that kind of thing). If they had a different chemistry (eg not calcium-based bones) it might make more of a difference.

It would be interesting to see.

K2-18 b is located 124 light-year from earth. One (1) light year is about 6 trillion US (statute) miles.

That would put your visit only about half a millennium away!

Hard to imagine. Thanks for setting it out.

A planet making enough methane that it supports twenty billion cows the size of wooly mammoths. The cattle industry is probably in talks with Elon Musk as we speak about how to market all that fresh, cheap organic beef here on earth. With all the methane (speculating on that), no one will have to worry about fueling the trip home—as long as the local Navi don’t mind sharing their food source.

With a breathable atmosphere. Where are all those ones?