 NASA illustration
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Bulletin at a GlanceNews |
Kepler’s Dense, Rock-and-Iron Planet
January 10, 2011 | With just 1.4 times Earth’s diameter but 4.6 times Earth’s mass, Kepler-10b has the average density of iron. > read more
Thunderstorms That Shoot Antimatter
January 11, 2011 | The Fermi satellite was launched to observe gamma rays coming from the distant universe. It has also found positrons coming from below. > read more
A Black Hole “Too Big” For Its Galaxy
January 12, 2011 | A lightweight little dwarf galaxy with no central bulge has a supermassive black hole half as heavy as the Milky Way’s. How did that happen? > read more
The Most Distant Galaxy Cluster
January 13, 2011 | Many instruments working together have profiled a baby galaxy group, seen not long after the Big Bang, of the kind that probably evolved into our Milky Way. > read more
 S&T: Lauren Darby
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Tour January’s Sky by Eye and Ear!
November 30, 2010 | The New Year opens with a partial solar eclipse, a great meteor shower, and a canopy of bright stars and planets overhead. > 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
Eclipses in 2011
December 30, 2010 | It will be a busy year for eclipse-watchers in the Eastern Hemisphere, but North Americans will have to wait until mid-December to see the Moon covered by Earth’s shadow. > read more
Meteor Showers in 2011
December 26, 2010 | Sky & Telescope predicts that 2011′s best meteor showers should be the Quadrantids in January and — maybe — an unusual outburst by the normally meek Draconids in October. > read more
 Sky & Telescope: Gregg Dinderman
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This Week’s Sky at a Glance
January 14, 2011 | Orion and Sirius are rising higher after dusk, while Jupiter declines on the other side of the sky. And this week the full Moon shines among its perennial January companions. > read more
 Seth Shostak
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Seth Shostak on SETI
January 14, 2011 | Sky & Telescope interviews Seth Shostak, senior astronomer at the SETI Institute, on the hunt for extraterrestrial intelligence. > read more
Celestron’s 14-inch EdgeHD
January 11, 2011 | Here are some celestial photos taken with Celestron’s new flagship telescope, the 14-inch EdgeHD. > read more
Ann
