The Promise of Kepler-22b

From YT: Exciting news from the Kepler mission yesterday! Here's what happened: they discovered a planet that is roughly the size of Earth, and is a good distance from the planet. Unfortunately, there's a lot of gaps from there on...
Morganthsays...

"Roughly the size of Earth" is a bit misleading. It's radius is 2.4 times that of Earth. That means its gravity will be 2.4 times that of Earth's if it has a comparable density (putting it in the super-Earth category) or 0.43 if it has the density of water. It could be more dense, less dense, or somewhere in-between (which would be the most desirable). What's significant is that if its atmosphere provides a Greenhouse effect similar to that on Earth, then it should have a surface temperature of 22C/72F.

A10anissays...

>> ^zombieater:

It saddens me to know that by the time this planet is even slightly analyzed for life, I will be dead and gone.


I agree. My fantasy is to sleep for 1000 years. Imagine what you would see when you awoke. Of course, that is, if we haven't wiped ourselves out by then.

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