Snow Greets Spring's Arrival

March 18, 2015 8:41 PM

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Life on Earth exists becuase of the sun and our distance from it. Without that star and the energy it gives off, we’d be what NASA once described as a “lifeless ball of ice-coated rock.” Luckily, we are far enough from it, and as of right now, it’s not radiating so much light as to make our planet uninhabitable. In some ways, we’re in the sweet spot, and researchers may have discovered many more such connections.

Stars in the Milky Way may have 100 billion planets — two, on average, per star — in their habitable zone, the area far enough from the star to avoid the planet getting scorched but close enough for it to potentially hold liquid water, according to new research from the Australian National Universit...

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