Since the dawn of the solar system, rocky visitors from deep space have blazed across Earth’s skies. When will the next asteroid or interstellar object make its pass by our planet?

In November 2025, two spacecraft on opposite sides of an interstellar comet did something no observatory on or near Earth ...

On May 22, 2026, the Pentagon released a second batch of previously classified photos and videos showing what appear to be ...

On a single day last November, two spacecraft millions of kilometers apart turned their ultraviolet eyes toward the same ...

NASA’s Europa Clipper and ESA’s JUICE captured opposite sides of interstellar comet 3I/ATLAS at the same time, revealing strange chemistry inside it.

Time as a concept seems so simple in day-to-day life, until you start talking about time travel and all the reasons that it could or could not be possible.

Mercury may have gotten much of its polar ice within a single Mercurian day following a massive asteroid impact, a new study ...

Harvard astronomer Avi Loeb suggests interstellar objects like 3I/ATLAS might be seeding life across the universe, proposing ...

Our sun is a loner. It lacks a stellar companion hurtling through interstellar space with it. But we've known for a long time ...

From arthouse gems to big summer blockbusters, these are modern cinema's best sci-fi flicks.

Harvard astrophysicist Avi Loeb says humanity may be nearing a 'cosmic revolution' as AI and new sky surveys could finally ...

Woman of Tomorrow, introducing Milly Alcock as Kara Zor-El, a hardened and cynical “cosmic gunslinger” whose outlook sharply ...