The Orionid meteor shower peaks tonight, so wake the kids for a teachable moment of wonder – whether you can answer their questions or not, they’ll remember these fragments of Halley’s comet when they see that comet come around again in 2061.
It's the 176th birthday of one of the most iconic of figures in US history. In honor of the day that Samuel Clemens was born, here are 10 reasons why we love the great American author known as Mark Twain.
The composition of comet Hartley 2 suggests that comets might have been a bigger source of Earth's water than previously thought. It's also challenging models of solar system formation.
Halley's Comet won't be back for half a century, but tonight Earth will move through some of the debris the comet left behind, creating a spectacular meteor shower – if you live far enough south.
As April is the cruelest month, it seems like a fine time to check in with some of the mystery genre's most reliable wordsmiths. From forgotten historical figures to lost children, there are enough puzzles and double-crosses here to carry fans through to summer – but not a butler in sight.