【探索频道】宇宙的边疆18
作者:互联网
2013-02-25 09:30
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Orion Nebula
Earth
earthlings
Orion, the Hunter.
Among the many glowing clouds of interstellar gas is one called the Orion Nebula, only 1500 light years from Earth. These three bright stars are seen by earthlings as the belt in the familiar constellation of Orion, the Hunter. The Nebula appears from Earth as a patch of light, the middle star in Orion's sword. But it is not a star, it is another thing entirely, a cloud that veils one of nature's secret places.
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