Our universe is filled with galaxies, in all directions as far as our instruments can see. Some researchers estimate that ...

Interstellar Comet 3I/ATLAS makes its closest, safe approach to Earth on Dec. 19. Learn how this rare visitor reveals secrets ...

NASA's Nancy Grace Roman Space Telescope team has released detailed plans for a major survey that will reveal our home galaxy ...

Scientists have discovered a massive, rotating galactic filament stretching about 50 million light-years across, containing roughly 300 galaxies that are all spinning ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

Researchers have found a razor-thin, rotating string of galaxies inside a massive cosmic filament, revealing unexpected ...

Could a comet from another star system be carrying raw ingredients for life? For the interstellar comet 3I/ATLAS, recent ...

NASA observed GRB 250702B, a record-setting gamma-ray burst lasting days, likely caused by a black hole consuming a star, ...

NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. Here's a look at the latest photo of the intriguing ...

New 3I/ATLAS images from NASA and the ESA suggest the interstellar comet is active as it approaches Earth in December.

A Rutgers astrophysicist is helping to solve a cosmic puzzle that has astronomers scratching their heads. The mystery centers ...

The Atacama Cosmology Telescope in Chile not only confirmed one of the greatest mysteries in the universe—it also ruled out ...