The data obtained by Webb had two things that took researchers by surprise.

New forecasts are helping scientists pinpoint one of the most elusive locations in space: the outer boundary of the Sun’s ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion ...

NASA's James Webb Space Telescope is finding clues that are leading scientists toward the origins of the interstellar comet ...

NASA found evidence of ancient water on asteroid Donaldjohanson, offering new clues about the early solar system.

NASA’s Nancy Grace Roman Space Telescope arrived June 21, at the agency’s Kennedy Space Center in Florida, marking the start ...

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar ...

Viewed from orbit, Jackass Flats — situated in southern Nevada about 65 miles northwest of Las Vegas — could easily be confused for Mars. The alluvial basin is full of tan and gray regolith, hued ...

Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents ...

The findings surprised researchers, who used the comet's composition to better understand the environment in which it formed.