Astronomy

Venus, Mars and Jupiter won't be visible together again for another six years.
We can't see it or feel it. But as Lisa Randall says, dark matter may explain a lot about our universe--including the dinos' demise.
At 46 billion pixels, you have to use an interactive online tool just to view it.
The newly discovered stars could either merge together or die in supernova explosions, leaving behind black holes.
This beautiful light show appears every year thanks to Halley’s Comet.
As they snack on anything and everything around them, the feeding sessions can get pretty "noisy."
Construction of the $1.4 billion Thirty Meter Telescope has been on hold since April as a result of the protests.
A new moon will create near-ideal viewing conditions on Oct. 8 and 9.