Did water on earth come from asteroid in space?

Where did earth's water come from? From God, of course! But do you have scientifical facts that can help explain how water started to exist on earth? Maybe this is the answer. Read the following article from CBS News to find out whether or not water on our beloved earth came from space.

There are millions of asteroids in the asteroid belt between Mars and Jupiter, but yesterday attention focused on just one. According to a couple of studies in Nature , a large asteroid called 24 Themis is rife with water ice and organic molecules, and the researchers say that it could be more evidence that the water so precious to life on Earth came to our planet on board such rocks. Two research teams took infrared images of 24 Themis , which is about 120 miles in diameter and was discovered in 1853. This asteroid has an extensive but thin frosty coating. It is likely replenished by an extensive reservoir of frozen water deep inside rock once thought to be dry and desolate. The team, led by Humberto Campins, says finding so much ice on the surface was a surprise; at the asteroids distance from the sun-3.2 astronomical units (AU), or just more than three times further than the Earth-exposed ice has a relatively short lifetime, the scientists write.

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