Why, Where, How, and When We Might Leave Our Home Planet

Humanity may have millennia to find a new home in the universe--or just a few years!

Earth won’t always be fit for occupation. We know that in two billion years or so, an expanding sun will boil away our oceans, leaving our home in the universe uninhabitable—unless, that is, we haven’t already been wiped out by the Andromeda galaxy, which is on a multibillion-year collision course with our Milky Way. Moreover, at least a third of the thousand mile-wide asteroids that hurtle across our orbital path will eventually crash into us, at a rate of about one every 300,000 years.

Read in detail at:
http://www.popsci.com/science/article/2011-02/after-earth-why-where-how-and-when-we-might-leave-our-home-planet

Quoted from
www.popsci.com

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Biggest Full Moon in 19 Years

On March 19th, the moon will be closer to Earth than it's been since 1992. The full moon that night will appear about 14 percent larger and significantly brighter than usual, but despite the brightness, the supermoon has a dark side. Supermoons have been linked to massive natural disasters in the past, from earthquakes to floods--but that connection is typically touted by astrologists. Astronomers and scientists, with typical drollness, say a catastrophe is unlikely.


Read more :
http://www.popsci.com/science/article/2011-03/biggest-full-moon-20-years-almost-certainly-wont-cause-huge-natural-disaster

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