NASA/GETTY IMAGES
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| April 27 - May 3 Our picks of the week's best pictures
The Cone Nebula, an innocuous pillar of gas and dust, in an image taken by the newly installed Advanced Camera for Surveys (ACS) aboard NASA's Hubble Space Telescope. This picture shows the upper 2.5 light years of the nebula, a height that equals 23 million roundtrips to the Moon. The entire nebula, which is 7 light years long, resides 2,500 light years away in the constellation Monoceros. (Tuesday, April 30, 2002) 
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