Interstellar comet 3I/ATLAS is approaching Earth on December 19 but NASA has clarified that it does not pose any threat to ...

The Hubble Space Telescope has captured imagery of the most distant single star found yet. It took the light from the star 12.9 billion light years to reach Earth. Learn how it was discovered. Credit; ...

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

Comet C/2025 R2 (SWAN)'s backdrop is dominated by the Eagle Nebula — a vast cosmic structure of dust and hydrogen-rich gas ...

NASA's Hubble Space Telescope has once again observed the interstellar comet 3I/ATLAS, revealing intriguing details about this visitor from outside our solar system.

Discovered in July 2023, Comet 3I/ATLAS has quickly captured the attention of the scientific community. Unlike typical comets that originate from within our solar system, 3I/ATLAS hails from beyond, ...

NASA scientists are sounding an alarm that would have been unthinkable a decade ago: the same commercial satellite ...

For the first time, astronomers have observed ultra-fast winds emerging from a black hole in a distant galaxy, shedding new ...

Before 3I/ATLAS, the only other confirmed interstellar tourists we've seen were the now-famous, cigar-shaped 'Oumuamua' in ...

NASA reveals the true, bizarre reason for the 3I/ATLAS comet's 16.16-hour pulse. Scientists link the interstellar object's ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from the early cosmos.

A team of astronomers including George Washington University physics Ph.D. student Eliza Neights recorded an extraordinary ...