The Asteroid that Almost Hit

21 years ago

For a few hours on January 13, 2004, some astronomers believed that a 30-metre asteroid could strike the Earth in…

Adaptive Optics Reveal Massive Star Formation

21 years ago

Astronomers at UC Berkeley took advantage of the newly installed adaptive optics system at the Lick Observatory to get clear…

Water Once Drenched Regions of Mars

21 years ago

NASA announced today that liquid water once soaked the environment around Opportunity's landing site, raising the chances that life once…

Black Holes Maintain Their Information

21 years ago

In 1997, cosmologists Stephen Hawking, Kip Thorne, and John Preskill made a bet about what happens to a black hole…

Both Rovers Working on Rocks

21 years ago

NASA's Spirit rover used its rock abrasion tool to dust off a rock called "Humphrey", and then backed away to…

Simulating Titan’s Atmosphere in the Lab

21 years ago

Saturn's moon Titan has long intrigued astrobiologists as a possible environment that was similar to our own Earth's early history.…

New Insights Into Martian Atmosphere

21 years ago

Astronomers have found hydrogen peroxide in Mars' atmosphere. The team gathered the data when Mars made its closest approach to…

Mars Express’ Image of Hecates Tholus

21 years ago

The European Space Agency's Mars Express spacecraft took this image of the caldera of volcano Hecates Tholus; it's 5300 metres…

Record for Furthest Galaxy is Broken Again

21 years ago

Astronomers from the European Southern Observatory (ESO) have shattered the record for finding the most distant galaxy ever seen. By…

Closest Youngest Star Found

21 years ago

Astronomers from the University of California, Berkeley have discovered the nearest and youngest star with a visible disk of dust…