Key TakeawaysType Ia supernovae let us precisely measure cosmic distances and gave us the first evidence of the universe's ...

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

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

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

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

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