Cosmic “touchdown airbursts” — explosions of comets or asteroids above Earth’s surface — may be far more common and ...
A nuclear winter is a theoretical concept, but if the climate scenario expected to follow a large-scale nuclear war, in which smoke and soot from firestorms block sunlight, came to fruition, global ...
The bright binary star system V Sagittae will flare up multiple times before finally going supernova within the next 100 years. When it explodes, it could be visible to the naked eye even in sunlit ...
Astronomers tracked a gamma-ray burst lasting over 7 hours, unseen in visible light, from a dusty galaxy 8 billion light-years away, challenging existing models and raising new questions for science.
Scientists have revealed for the first time a jaw-dropping early view of an exploding supernova. Observations with the European Southern Observatory's Very Large Telescope (ESO's VLT) have revealed ...
Astronomers used major telescopes across the world to probe a cosmic explosion 8 billion light-years from the solar system.