If you forgot to check out last night's penumbral lunar eclipse, you didn't miss much!
Check out the impressive interplay of Io, larger Ganymede, and Io's shadow during a remarkable pairing of these Jovian moons captured on August 16th.
If you live along the U.S. midsection, from California to the Mid-Atlantic states, you've got a chance to watch a star occulted by the binary asteroid Patroclus on October 20–21.
Clouds, veering cabbies, and old optics didn’t deter committed spectators of this last-chance astronomical event.
Veteran skywatchers are trying to contain their enthusiasm for Comet ISON, which, late in 2013, could become the brightest comet in decades.
Observers using the automated Pan-STARRS 1 telescope in Hawaii have found a new comet. As of right now, it might brighten to 1st magnitude in early 2013, but it's far too early to be certain of that.
Early risers today have a chance to see this beautiful crescent Moon slide past Venus in the dawn sky. This view by Johnny Horne was captured at 5:34 a.m. EDT at Wade, North Carolina
The Moon will become totally eclipsed for much of North America before sunrise on December 10th.
Heavy downpours — and a nearly full Moon, unfortunately — are forecast for next year's Draconid meteor shower.
For the next week, the enormous International Space Station will be slam-dunk easy to spot in the evening sky — if you know where and when to look for it.
When nature puts on a great show, why not watch? The Geminid meteors, which peak on December 13-14, may not be as famous as August's Perseids, but they're just as bountiful.
If celestial prognosticators are right, the little-known Draconid meteor shower could deliver hundreds of "shootings stars" per hour during a brief window on Saturday, October 8th. But the outburst's timing favors Europe, not North America.
It's tricky deciding when to post an observing story on the Web.
Sky & Telescope contributing editor David H. Levy joins our cadre of bloggers. Check out what he's been up to "On the Road."
Tuesday morning's total lunar eclipse made for a stunningly dark, beautiful sight.
If your evening sky is clear on Tuesday, April 8th, head out soon after sunset to catch a beautiful celestial scene.
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.
What's with the sudden realization that the zodiac has 13 constellations and that Sun signs have shifted due to precession? S&T devotees — and astrologers — have known this all along.
For all of North America, the full Moon has a total eclipse high overhead late on the night of December 20-21.
It was faint, and it zipped across the sky at 3° per hour but 2007 TU24 could be spotted with a good scope if you knew where and when to look.
Take part in this year's Great World Wide Star Count, and you'll be joining thousands of other "citizen scientists" in raising dark-sky awareness around the globe.
Before dawn on Friday, October 25th, observers along the East Coast have an opportunity to watch the large asteroid Ceres cover a faint star — an event that could aid the forthcoming arrival of NASA's Dawn spacecraft.
August's full Moon has come and gone. While it wasn't the second one occurring this month, it was a "Blue Moon" according to a definition dating to the 1930s.
Next door to Comet ISON in the eastern pre-dawn sky, Comet C/2012 X1 (LINEAR) exploded without warning from magnitude 14 to 8.
Mark your calendars for August 21, 2017 — when the Moon's umbral shadow will race coast to coast across the United States for the first time in nearly a century.