Astronomers are preparing for a rare cosmic event on January 22, when interstellar object 3I/ATLAS will align closely with ...

A pair of scientists may have figured out interstellar asteroid ‘Oumuamua’s secret — and it’s not an alien spaceship after all. When the first known interstellar object passed through our Solar System ...

A newly discovered celestial object may be a starless cloud that could change how astronomers understand dark matter.

Scientists conclude that interstellar object ‘Oumuamua must be very elongated because of its dramatic variations in brightness as it tumbled through space. NASA/JPL-Caltech Scientists have found more ...

New research suggests that a massive, unidentified object might have passed through our Solar System billions of years ago, leaving a lasting imprint on the orbits of our planets. This intriguing ...