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An image of the second interstellar object, 2I/Borisov, taken in 2019. Astronomers have now spotted a third
An artist's impression of 'Oumuamua, the first known visitor from the stars to our Solar System
This image courtesy of David Rankin, Saguaro Observatory, shows interstellar object A11pI3Z captured on June 2, 2025 by David Rankin, engineer…
Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our Solar System -- only the third ever spotted, tho…
Despite brief oases, Mars was likely doomed to be a desert planet, a new study suggests
Mars rover Perseverence has also discovered signs of these important carbon-dioxide-rich rocks