A mysterious 10-second signal just rocked the world of astrophysics — and it came from 13 billion light-years away. In ...

The mysterious 10-second flash of energy, first detected in March, has been identified thanks to NASA's ever-impressive James ...

Gamma rays are invisible and ultra-powerful forms of light. They are the most energetic source of radiation known in the ...

The blast may have been a kilonova — a type of neutron star merger — in the wake of a more traditional supernova.

SN Ares might be the most exciting one. The star exploded when the universe was about one-third of its current age.

Twinkle, twinkle, little star. How I wonder what you, wait a minute, why are you twinkling so much? Um, guys, that's no ...

Astronomers may have finally solved one of the weirdest mysteries of our night sky: why Betelgeuse, a massive star in the constellation Orion, seems to fade and brig ...

Kepler's supernova remnant is extremely exciting for astronomers – a rare example of a supernova for which we have a clear ...

Black holes are not cosmic vacuum cleaners. They are among the universe’s most extreme objects - and come in different sizes.

KEY OBSERVATIONS Light from a dead star exploded ten billion years ago, yet it reached Earth not once, but several times, ...

"This was many times more energetic than any similar event and more than any known explosion powered by the collapse of a ...

It's the last clearly observed supernova in the Milky Way, Gassel said.