One amateur astronomer is on a quest to identify every object in the catalog of Lynds’ dark nebulae. Tag along for the ...

What if the cosmos’s most violent deaths might shed light on its darkest secrets? NASA’s Nancy Grace Roman Space Telescope, ...

It took about 50 exploding stars to upend cosmology. Researchers mapped and measured light from Type Ia supernovae, the ...

Recent studies indicate that the universe may be decaying or expanding more rapidly than expected, raising questions about ...

Hubble's new image of galaxy cluster Abell 209 reveals over 100 galaxies and gravitational lensing effects from dark matter ...

Key TakeawaysScientists have used laser-excited thorium-229 to probe for ultralight dark matter, even without a fully built ...

But axions were pushed aside as the WIMPs hypothesis gained more steam. Back-of-the-envelope calculations showed that the natural mass range of the WIMP would precisely match the abundances needed to ...

New Moon means dark skies — and your chance to try photographing interstellar interloper 3I/ATLAS moving against the ...

Evidence is mounting that cosmic dark energy, long thought constant, may weaken with time - potentially altering the fate of the universe.