SUNSET: 
Sky at a Glance | December 28th, 2007
Mars outshines everything else high in the east these evenings, stealing the limelight from the bright winter constellations around it. Meanwhile, Comet Holmes just keeps growing — and Comet Tuttle is nearest and brightest this week.
A Gamma-Ray Burst Out of Nowhere
Astronomers are mystified by a gamma-ray burst without a host galaxy.
Sky at a Glance | December 14th, 2007
This week Mars is at its closest to Earth; get out the telescope! And Comet Holmes just keeps growing, though it's dimmed by the increasing moonlight.
200 Million Objects Shining in Hydrogen
A new sky survey is seeing the universe in a new way.
Dust in a Hot Jupiter's Atmosphere
Precise measures by Hubble indicate that a roasting "hot Jupiter" close to its star has an atmosphere thick with dust.
Observe Mars Tonight!
Mars now appears bigger through a telescope than it will again until 2016.
Sky at a Glance | November 30th, 2007
Comet Holmes, dimming but growing ever larger, is one again easy to spot in a moonless evening sky. The Moon itself has gone off to consort with Regulus, Saturn, Venus, and Spica in the dawn.
A Revival of Comet Holmes
It's still there! With the Moon now gone from the early-eyening sky, Comet Holmes is the easiest-to-spot "deep sky object" after the Pleiades.
Sky at a Glance | November 21st, 2007
Comet Holmes, fading as it enlarges, is moving away from the star Mirfak this week. And the bright Moon passes among bright stars and a planet.
Sky at a Glance | November 16th, 2007
Comet Holmes is passing very close by Mirfak this week — and fading as it enlarges. Mars and Orion rise together, Vega and Capella balance out, and Venus guides the way to Mercury at dawn.
Sky at a Glance | November 9th, 2007
Comet Holmes remains big, bright, and puffy high in the evening sky — but moonlight will soon be back. Before dawn, dazzling Venus marks the route to other sky sights in the east.
Sky at a Glance | November 2nd, 2007
Comet Holmes has turned big and puffy — and the Moon is now gone from the evening, leaving a dark sky behind. Early risers will find that the Moon is off pairing up with Regulus, Saturn, Venus, and Mercury in the dawn.
Comet Holmes Beckons Skygazers Worldwide
As of January 4th the comet, ever-enlarging and thinning, is still in naked-eye view — but only if you have a fairly dark-sky site. Use binoculars to follow its next moves.
Sky at a Glance | October 26th, 2007
Glance up at Perseus during evening, and they's all you may need to do to spot Comet Holmes in outburst, tiny but bright enough to change the constellation's familiar pattern. Late in the evening, Mars rises to blaze in the east.
Sky at a Glance | October 19th, 2007
Saturn and Regulus climb above Venus at dawn, the Orionid meteor shower is active before dawn, and little Comet LONEOS puts in a shy appearance right after dusk.
Sky at a Glance | October 12th, 2007
The waxing crescent Moon enters the evening twilight this week, growing thicker and higher each day. Watch it passing Antares and bright Jupiter. At dawn this week, brilliant Venus meets up with Saturn.
Sky at a Glance | October 5th, 2007
Jupiter is bidding a sad farewell in the southwest at dusk. . . but big planetary action is happening at dawn, with bright Venus taking Saturn and the star Regulus under its wing. And on Sunday morning the 7th, the crescent Moon joins the party too.
Site Picked for Giant Magellan Telescope
Another truly monster telescope of the future has just taken a step closer to reality.
Sky at a Glance | September 28th, 2007
Mars is brightening week by week now, as Earth swings closer to it in orbit. Meanwhile, bright Jupiter is departing in the southwest after dusk, and Mercury glimmers low in the sunset.
Sky at a Glance | September 14th, 2007
The waxing Moon passes bright Jupiter in the evening sky this week, while Mercury closes in on Spica low in the sunset. Venus blazes at dawn — lighting the way to Saturn and Regulus low in the sunrise.
