Discovery of Earth-like Planet

September 29, 2010

Astronomers have announced the discovery of the most Earth-like planet ever found outside our solar system. The alien world dubbed Gliese 581g (depicted in the image), which is 20 light years away, is thought to be situated in the "Goldilocks zone," just the right distance from its sun for water to form. More here.
Of the 400 planets discovered thus far, if the odds hold, there are thousands of habital planets out there. One we know of because we live on it, and now there is possibly another. 2/400 is .005. 0.5% of a reasonably conservative estimate of the planets in the galaxy, say a million would yield about 5,000! If the odds don't hold and there are only 1/10 of that number means there could be as many as 500. But imagine finding 20 - 50! It's still phenomenal.

We only have to figure out how to get out there and plant the algae! We should start experimenting on Mars ASAP.