For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to be true. Space is stretching faster today than in the past, and the precise ...

Astronomers using the James Webb Space Telescope have captured dramatic helium streams pouring off the super-puff exoplanet WASP-107b, revealing a world with an enormously inflated, weakly bound ...

"This observation also demonstrates that we can use Webb to find individual stars when the universe was only 5% of its ...

NASA has visualized the cataclysm, which is thought to have caused a mysterious eruption of gamma rays captured by telescopes ...

Scientists say the best explanation for the longest gamma ray burst is that a black hole consumed a star, but they disagree ...

Scientists say the best explanation for the longest gamma ray burst is that a black hole consumed a star, but they disagree ...

Astrophysicists have achieved an eye-opening leap in understanding stellar death, capturing unprecedented, detailed images of ...

An immensely powerful flash detected earlier this year was created by a massive star exploding when the universe was just ...

Astronomers at the University of North Carolina at Chapel Hill have helped uncover new clues about the longest-lasting cosmic ...

Sculpted by Stellar Winds. NGC 346 is a young star cluster about 200,000 light-years away, in the Small Magellanic Cloud. This image combines Hubble observations made at infrared, optical, and ...

“The fact that we can now watch stars explode and immediately see the structure of the material being blasted into space is ...

At least two ingredients are needed to make jets — rotation and magnetic fields — and these produce the ubiquitous laserlike jets we see.