Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

Hubble Space Telescope can "only see the universe in shades of grey," according to NASA's Goddard Space Flight Center. Learn ...

Astronomers have weighed a lonely planet drifting through the Milky Way, using a rare cosmic alignment. How this exiled world ...

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

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 ...

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

Many stars die spectacularly when they explode as supernovae. During these violent explosions, they leave behind thick, ...

NASA’s Mars rover finds organic signals in mudstone that resemble microbial activity, sparking new debate over life on the ...

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

NASA’s Chandra telescope has identified SPT-CL J2215-3537, a massive, calm galaxy cluster from the early universe, revealing ...