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| IN THE SEPTEMBER 2009 ISSUE > |
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Featured Articles |
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ESO / H.H. Heyer
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Smashing the Distance Record An exploding star establishes a new benchmark for most-distant known object in the universe. By Edo Berger Ice Age Impact Scientists are debating whether a comet triggered the extinction of the large North American mammals. By Ivan Semeniuk The Cosmologist Left Behind Edwin Hubble usually gets the credit, but Vesto Slipher saw the first signs that the universe was expanding. By Marcia Bartusiak |
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Beyond the Printed Page |
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Jupiter Without Moons On the night of Sept. 2-3, all of Jupiter's moons are hiding either in front of the planet, behind it, or in its shadow. The sequence of events leading up to and away from this rare event is fascinating to watch. read more > By Tony Flanders |
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Also in This Issue |
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Deep-Sky Wonders The globular clusters near the galactic core are amazingly diverse. By Sue French The AT106 Refractor A 4.2-inch triplet APO for just $2,100. By Alan Dyer Table of Contents See what else September's issue has to offer. read more > |
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Jim Misti
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