The Earth-Twin Planet That Nobody Talks About

(Discover Blogs::Out There) – Corey S. Powell:

NASA scientists were conferring recently about a nearby planet that is shockingly similar to Earth. It is just 5% smaller in radius and 15% smaller in mass. It is almost the exact same age as our planet, and gets its warmth from an identical star. The only thing that’s a bit off is that it orbits a bit closer to its star than Earth does, so it receives nearly twice as much radiation. On the other, it also reflects away a lot of that radiation. Its theoretical (equilibrium) temperature is just below freezing, so with a little natural greenhouse warming it would be quite an inviting place.

If we found it orbiting another star, this world would surely be hailed as the most Earthlike exoplanet known: the best place yet to search for alien life.

No doubt you sense there is a catch, and indeed there is. The world I’m talking about is Venus. …

outthere/2015/09/30/twinplanet

 Maat Mons on Venus

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