Dark matter is a mystery. Astronomers know it's there because they can measure the effect of its gravity on stars…
Astronomers have measured the light from a supernova, and believe that it was inside a very unusual star system when…
NASA's Opportunity has crawled out of the crater it landed in, and turned back to survey its old home. Getting…
In case you weren't counting, today marks the fifth anniversary of Universe Today. That's right, I started this space web…
Amateur astronomer Jay McNeil made a lucky discovery last month when he noticed a new smudge of dust in the…
NASA's Cassini spacecraft took this latest picture of Saturn this week when it was 59.9 million kilometres away. The photo…
When they look at Io, one of Jupiter's moons, researchers think they could be seeing that the Earth might have…
Beginning tonight, and lasting for about two weeks, all five planets visible to the unaided eye will be in the…
A Boeing Delta II rocket launched the 50th Global Positioning System (GPS) satellite on Saturday. The rocket lifted off from…
Billionaire Paul Allen has committed $13.5 million to support the construction of the first and second phases of the Allen…