Astronomers have found fast-moving wave-like features - ripples - in the dusty disk surrounding a young star. Nothing like this was ever observed or predicted.
Powerful telescopes coming soon. Where shall we point them to find extraterrestrial life? Astronomers have created a way to help prioritize exoplanets.
Real-life views of places on Mars where a fictional stranded astronaut, Mark Watney - from the Hollywood movie The Martian - undergoes his many trials.
Miners, working in opal deposits in the New South Wales outback, first discovered the fossilized remains of this creature, which has been dubbed Lightning Claw.
Asteroid impact and volcanic eruptions might have been a one-two punch that killed off the dinosaurs. New dates suggest the catastrophes were nearly simultaneous.