For more than a century, astronomers have known that some “new stars” flaring into view are not births at all but violent ...

Cosmic “touchdown airbursts” — explosions of comets or asteroids above Earth’s surface — may be far more common and ...

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 ...

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 used major telescopes across the world to probe a cosmic explosion 8 billion light-years from the solar system.