SUNSET: 
A Runaway Star with a Story To Tell
Now streaking away in the Milky Way's outermost halo, HE 0437-5439 had a very close run-in with the galaxy's central black hole. And that was just the beginning.
Home Computers Dredge Up Weird Pulsar
The Einstein@Home project logs its first discovery, 17,000 light-years away in Vulpecula, through a computer in a couple's basement.
"And the Winner Is..."
Most of us are just casual skygazers. But each year several amateur astronomers are honored for their true passion and dedication at awards ceremonies across the U.S.
Stellafane at its Best
There's star parties and star parties — and then there's Stellafane. Inaugurated in 1926, the Stellafane Convention is probably the longest-running star party in North America, if not the world.
A Lunar Debate: Dry or Wet?
It's been 40 years since Apollo astronauts returned with dusty chunks of the Moon — samples that offer conflicting views of lunar history.
A Solar Tsunami
On August 1st, the Sun let loose with a mighty belch that rippled across its face, sent a torrent of high-energy particles racing into space, and triggered a burst of auroras on Earth.
An Evening Dance of Planets
Step outside as evening twilight fades, and you’ll find brilliant Venus, along with fainter Mars and Saturn, shining low in the west.
Green Lasers: A Hidden Danger
They're compact, handy, and incredibly useful at star parties. But beware: a new study reveals that your bargain-priced green laser pointer might be emitting harmful amounts of infrared energy.
Bull's-Eye Crater on Mars
Whether caused by two strikes on the same spot or strange layering beneath the Martian surface, this newly imaged crater is a fascinating find.
Tour August's Sky! | July 30th, 2010
Venus, Mars, and Saturn dance in the west after sunset, while soon afterward giant Jupiter rises in the east — all that, and Perseid meteors too! Host: S&T's Kelly Beatty. (6MB MP3 download: running time: 6m 48s)
The Sky is Not Falling
This past week, news surfaced that a sizable asteroid has a roughly 1-in-1,000 chance of whacking Earth sometime in the next two centuries. But don't let the news spoil your summer vacation — the story is being overplayed.
A Telescope for Tatakoto
A tiny South Pacific atoll rolled out the welcome mat for dozens of eclipse-goers — and got an unexpected thank-you gift in return.
Dark Nights for the Perseids
Don't miss the year's best-known meteor shower, predicted to peak on the night of August 12th.
The August Mars Hoax Is Back
No, Mars will not shine as big and bright as the full Moon. But you can't stop a good e-mail chain letter, now in its eighth year.
New Trove of Iron Meteorites
Geologists have found a fresh impact crater in southern Egypt surrounded by thousands of pieces of the cosmic collider that formed it.
R136a1: New Heavyweight Champion?
Astronomers think they have identified a star with 265 times the Sun's mass — a heft once believed to be theoretically impossible.
WISE Takes a Look (All) Around
NASA's latest space observatory has just completed a six-month-long sweep of the entire sky at infrared wavelengths.
Strange Twists in Saturn's Rings
Thousands of mysterious, propeller-shaped features have been found in Saturn's A ring. Could these hold the key to the ring system's origin?
Solar activity is ramping up
Sunspot AR 1087 is crackling with activity, take a peek if you can!
Rosetta Visits a Big Space Rock
A European-built comet chaser swept past asteroid 21 Lutetia today, offering glimpses of what might be a largely metallic body that's 100 miles across.
