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 ...

Astronomers have long struggled to capture the true nature of stellar nova explosions. However, thanks to cutting-edge techniques, a team of scientists has finally been able to observe these cosmic ...

ANTIGUA, Guatemala – Volcan de Fuego in southern Guatemala kicked off Halloween by lighting up the early morning sky with explosions and lava bursts. Time-lapse footage shows the volcano repeatedly ...

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.