 NASA / IPAC / R. Hurt
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Bulletin at a GlanceNews |
The Coolest Stars Ever Found?
March 23, 2011 | Astronomers have found what could be the first-ever members of a new stellar class — “stars” with surface temperatures lower than that of a hot cup of coffee. > read more
Best-yet Value for Universe’s Expansion
March 21, 2011 | A new study with the Hubble Space Telescope pins down the universe’s expansion rate with unprecedented accuracy. > read more
New Insights on Lunar Swirls
March 24, 2011 | Comet impacts? Magnetic oddities? Crashed alien spaceships? Soon scientists hope to solve the longstanding mystery of bright swirls like Reiner Gamma on the lunar surface. > read more
 GLOBE at Night
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How Many Stars Can You See?
February 23, 2011 | Join the sixth worldwide GLOBE at Night 2011 star-counting campaign (March 22nd through April 4th), and do your part to fight light pollution! > read more
Tour March’s Sky by Eye and Ear!
February 24, 2011 | This will be a month of transition, celestially speaking: spring and daylight-saving time arrive for northern skywatchers, Jupiter makes an exit, and Saturn is waiting in the wings. > read more
Saturn’s New Bright Storm
December 27, 2010 | A massive new storm in the ringed planet’s northern hemisphere is bright enough to see in small telescopes. > read more
 Sky & Telescope diagram
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This Week’s Sky at a Glance
March 25, 2011 | Mercury is fading in the sunset and Orion is tilting southwest on his way down, while Saturn is rising higher as it nears opposition in the eastern evening sky. > read more
 S&T: Jessica Kloss
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Video: Using Star Charts and Star Wheels
March 24, 2011 | Watch S&T senior editor Alan MacRobert show and explain how to use star charts and star wheels. > read more
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