Something Strange Was Found On Titan

It seems there's no other place in the universe with a dense atmosphere, mountains, sand dunes, plains, lakes, rivers and oceans except the planet Earth. 

But it turns out there's actually a place much like the Earth in our solar system that has a complex weather cycle, landscapes carved by liquid, and volcanic activity. 

It may even resemble the Earth in its earliest stages, and some scientists think it might be better to colonize it first instead of Mars.