A mysterious object, first observed hurtling across the solar system on July 1, has now been identified as "very likely to be ...

Astronomers are racing to study our solar system's newest 'interstellar visitor.' Here's why. Delta passengers were stranded on a tiny island in the middle of the Atlantic for 29 hours after midair ...

British astronomers may have solved the mystery of an "interstellar object" hurtling towards our planet. Scientists believe the mysterious interstellar visitor may be the oldest comet ever observed.