A giant comet, likely the largest comet discovered in modern times, is on its way toward the sun. Scientists caught sight of the comet early, giving researchers years to watch it evolve and streak ...

Add Yahoo as a preferred source to see more of our stories on Google. Comet C/2014 UN271, aka Bernardinelli-Bernstein, is the largest known comet from the Oort Cloud. Using a giant Chilean desert ...

In a groundbreaking discovery, astronomers have uncovered the first direct evidence of molecular activity in comet C/2014 UN271, also known as Bernardinelli-Bernstein. This massive comet, located in ...

A strange, city-sized comet seems to have woken up early as it drifts toward the sun — even though it's still much farther than Saturn in space. Using a giant Chilean desert telescope, the Atacama ...