NASA’s James Webb Space Telescope’s NIRCam (Near-Infrared Camera) has captured a stunning view of supernova remnant ...

Astronomers have obtained remarkably detailed images of two stellar explosions -- called novae -- just days after they began.

Hubble reveals a chaotic spiral galaxy whose close encounter with a neighbor has ignited a spectacular burst of star birth.

A superkilonova candidate event, named AT2025ulz, was observed in 2025; LIGO and Virgo first spotted gravitational waves, ...

The month brings a strong lineup of celestial sights, including a supermoon, meteor activity, and several close moon-planet ...

Webb telescope discovered a bizarre exoplanet with carbon atmosphere, no hydrogen, orbiting a super-dense spinning star.

The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history ...

A new study questions dark energy's role in the universe's acceleration, suggesting it may be weakening instead.

Find out what's up in your night sky during January 2026 and how to see it in this Space.com stargazing guide.

Researchers at the University of North Carolina at Chapel Hill have contributed to new insights into the most long-lived cosmic explosion ever recorded. The event was a gamma-ray burst that remained ...

In 1892, astronomer Edward Emerson Barnard thought he saw a bright star near Venus, but then it vanished. We may now know why ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...