[johngarrison]

Whether it harbors intelligent life, however, is still up for debate.

[0xFFFE]

By the looks of it, we still have a long way to go. :)

[Gravityloss]

So far, we're not doing any better than cyanobacteria -Ray Pierrehumbert.

(The start of photosynthesis by cyanobacteria nearly killed all life on the planet.)