![]() NASA / JPL-Caltech / Univ. of Arizona
|
Bulletin at a Glance |
Strongest Evidence Yet for Martian Water
August 4, 2011 | NASA’s Mars Reconnaissance Orbiter has found perplexing dark streaks that form seasonally and strongly suggest that liquid water flows on the Martian surface. > read more
Big Splat Could Have Reshaped the Moon
August 4, 2011 | Recent research suggests that the thick, heavily cratered crust on the Moon’s far side could be the pasted-on remains of a second satellite that once orbited early Earth. > read more
Where No Spacecraft Has Gone Before
August 2, 2011 | Dawn sends stunning images from Vesta of an uncharted alien world. > read more
Amateur Search for White-Dwarf Planets
August 3, 2011 | Arizona amateur Bruce Gary is assembling a pro-am team to look for planets orbiting dead stars. > read more
Sky & Telescope September 2011
July 22, 2011 | Sky & Telescope‘s September 2011 issue is now available to digital subscribers. > read more
![]() International Occultation Timing Association
|
Watch a Star Wink Out on August 10th
May 6, 2011 | On the evening of Wednesday, August 10th, the Moon will cover the 2.9-magnitude star Pi Sagittarii for the eastern half of North America. > read more
Great Sun This Week
August 3, 2011 | This week the Sun is putting on its best show in nearly a decade. > read more
Ceres and Vesta in 2011
May 20, 2011 | The two brightest asteroids are fairly close to each other in 2011. Click here for instructions and charts to find them. > read more
Tour August’s Sky by Eye and Ear!
July 29, 2011 | This is your last chance to spot Saturn before it sinks into the evening twilight. But there are many other celestial attractions to look for on August evenings. > read more
![]() Akira Fujii
|
This Week’s Sky at a Glance
August 5, 2011 | The Moon lines up with Saturn and Spica at dusk, then waxes across the evening sky for the rest of the week. Jupiter blazes high in the wee hours. And the bright asteroid Vesta — accompanied by NASA’s DAWN spacecraft! — awaits viewing just past opposition. > read more
Interactive Sky Chart Restored
August 1, 2011 | The Interactive Sky Chart is now working again after a 2-month hiatus. > read more
Let the Star Parties Begin!
April 14, 2011 | Want to gaze at the Milky Way all night or peer into the eyepiece of a 12-foot-tall telescope? Then escape the city lights and head for the nearest “star party.” > read more