What was it?

Astronomy & Observing News

Update on Hubble Mystery Object

It steadily brightened, then steadily faded in a way like no known variable object. Now astronomers have a tentative distance for it: about 1.8 billion light-years. And it was full of carbon.

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Astronomy & Observing News

Earth Sciences Gain in New NASA Budget

Satellites that look down are the biggest winners, but plans to look — and to go — up and away also do well.

Astronomy & Observing News

USAF to Track More Sats for Crashes

The debris-spewing smashup of a Russian and an American satellite last February is prompting the Air Force to step up its collision-predicting efforts.

Astronomy & Observing News

Orbiting Pulsars @ Home

Einstein@Home, a computer screensaver that searches for space-time ripples, will now hunt for pulsars that whip around other stars or black holes. These could put general relativity to its toughest test yet.

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