Unlike YR4, finding earlier observations of 3I/ATLAS to model where it might have come from was easier said than done. During ...

Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.

Astronomers using the James Webb Space Telescope report that a powerful gamma-ray burst detected in March may have been ...

Among the more puzzling cosmic phenomena discovered over the past few decades are brief and very bright flashes of blue and ...

After a decade of painstaking measurements, scientists have delivered a major plot twist in particle physics: a ...

For the first time, scientists have created detailed, 2D maps of the sun's outermost atmosphere. This feat was accomplished ...

Visitors to the Sunwheel can see the sun rising and setting over the winter solstice stones from approximately Dec. 16 ...

With 3I/ATLAS slated to make its Earth tour in two days, amateur photographers and astronomers alike are scrambling to catch ...

Mysterious Bright Flashes in the Night Sky Baffle Astronomers Celestial transients shine furiously and briefly. Astronomers ...

The first pulsar was discovered in 1967 by Jocelyn Bell Burnell. Finding these mysterious signals forever changed astronomy.

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

Webb traced the light of a dying star, supernova GRB 250314A, from when the universe was only 730 million years old.