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February 2008
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Features
How comets shaped history
In ancient skies, a comet's sudden appearance provided both spectacle and portent — and savvy leaders took advantage.
By Richard Jakiel
Scroll through the past to see just how good a comet can be.
By Francis Reddy
Journey to the heart of the Milky Way
Astronomers know a supermassive black hole anchors our galaxy's core. But they struggle to understand the origins of fast-moving stars that swarm it.
By John Dvorak
Did a medium-sized black hole drag a cluster of hot young stars to the Milky Way's core?
By Daniel Pendick
On the trail of hydrogen's heavy sibling
With twice the mass of ordinary hydrogen, deuterium plays a weighty role in trying to comprehend the early universe, galactic evolution, and life's extent.
By Bruce Dorminey
Where has all the water gone?
New results from Mars Reconnaissance Orbiter suggest the Red Planet's past may not have been so warm and wet after all.
By Richard Talcott
The High Resolution Imaging Science Experiment onboard the Mars Reconnaissance Orbiter continues to amaze scientists with its detailed images.
By Richard Talcott
Illustrated: Explore Jupiter's moons
Tenuous dust rings, glowing gas clouds, and a ring of plasma arise from Jupiter's closest moons.
By Francis Reddy; Illustration by Roen Kelly
Observe winter's forgotten star clusters
Begin your observing year with 16 bright, but little-known, open clusters.
By Steve Coe
Your tour of great open star clusters is just beginning.
By Michael E. Bakich
The darkest sky under the stars
Observing and imaging are top priorities at Arizona Sky Village, a remote community that may be amateur astronomers' paradise.
By Michael E. Bakich
Meade's mySKY teaches you the stars
Beginning astronomers take note: You can identify celestial objects like a pro.
By Mike D. Reynolds
Departments
This month in Astronomy
Astronomy magazine’s iStar Party
Web talk
Letters
Bob Berman's strange universe
Glenn Chaple's observing basics
Here are some space-related sites Astronomy editors browse frequently.
Phil Harrington's binocular universe
Seek out more star clusters in Gemini and the elusive Eskimo Nebula.
By Phil Harrington
Stephen James O'Meara's secret sky
Astro news
Hubble peers into a Milky Way starburst, Harmony arrives at the space station, and a youthful galaxy grows up
The sky this month
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