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

News that a NASA scientist has announced fresh progress on Proxima b has pushed our nearest known exoplanet neighbor back ...

The object is the third interstellar visitor to our solar system ever confirmed. It will reach its closest point to Earth ...

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

NASA has announced a major discovery on Mars that could reshape our understanding of the planet’s past. Early data suggests ...

NASA officials dismissed theories that the interstellar 3I/ATLAS could be an alien spaceship while dropping new photos of the ...

The space agency got a close look at the interstellar visitor over the past few months as it zipped by Mars and the sun ...

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

A comet hurtling through the solar system from interstellar space is exactly what it appears to be, NASA officials said ...

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

The eye-opening photos, which were taken “during a number of the agency’s missions,” will be unveiled on Wednesday, November ...

While none of the spacecraft have cameras perfectly designed to spot comets zipping by at speeds up to about 153,000 miles per hour (246,000 kilometers per hour), astronomers didn’t want to miss what ...