The unusual comet—which is to pass Earth again in the coming weeks—is only the third known object to visit us from outside ...

NASA will reveal new imagery of the interstellar comet 3I/ATLAS on Wednesday (Nov. 19), and you can watch it live. The ...

NASA has scheduled a photo-dump of 3I/ATLAS images captured by the agency's fleet of ground and space instruments. You can ...

NASA released a trove of never-before-seen images of the interstellar comet 3I/ATLAS, unveiling new characteristics of the ...

European astronomers report the discovery of a second alien world in the TOI-1422 planetary system located some 500 light ...

High above Antarctica, a series of NASA research balloons picked up radio signals that should not exist, at least not ...

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

Interstellar comet 3I/ATLAS has spent the last several months on a tour of our solar system. NASA spacecraft and telescopes ...

NASA will go live today to share long-awaited images of the mysterious interstellar object 3I/ATLAS. Is it nearing Earth? How ...

A few years ago, NASA was listening for cosmic rays above Antarctica when it found signals that shouldn't exist, and it's ...

NASA's Perseverance rover found a peculiar rock on Mars. Its composition suggests it may have originated from beyond our ...