On: TRAPPIST-1 Is Older Than Our Solar System

[fizixer]

Not all seven, but three of them are in the habitable zone.

Still better than our system no doubt.

[DougWebb → fizixer]

We also have three rocky planets in the habitable zone. That's not sufficient to actually make them habitable.

[debatem1 → DougWebb]

I dunno, there's pretty strong evidence that one out of the three here is, in fact, habitable.

[johngarrison → debatem1]

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

[0xFFFE → johngarrison]

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

[Gravityloss → 0xFFFE]

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.)

[jcelerier → debatem1]

even worse: it's full of aliens!