While surveying distant worlds beyond our solar system, researchers unexpectedly obtained the first direct images showing ...

Three galaxies were found in the merger of a triple system, which was rare in itself, and might help observe hierarchical ...

New observations of a nearby red giant star suggest that a long-standing explanation for how giant stars spread life’s ...

Astronomers have spotted AT2025ulz, a rare dual explosion — a supernova and a kilonova — that may be the first-ever observed ...

A groundbreaking discovery published in Nature Astronomy has revealed a cosmic phenomenon that may finally settle a ...

A mysterious force called Dark Energy might be changing, in a way that challenges our current understanding of the nature of ...

Understanding how the Milky Way formed means looking far beyond the bright spiral you see in the night sky. A new study led ...

Animation of the findings by researchers who used time-delay cosmography to independently confirm that the universe’s current ...

But the Big Bang theory predicts that about 5% of the universe's contents should be atoms made of protons, neutrons and ...

Visitors to the Sunwheel can see the sun rising and setting over the winter solstice stones from approximately Dec. 16 through Dec. 26. During this period the sun appears to rise at a fixed spot on ...

The first pulsar was discovered in 1967 by Jocelyn Bell Burnell. Finding these mysterious signals forever changed astronomy.

Long before modern telescopes, early astronomers mapped the heavens with math, myth, and sheer curiosity. This crossword quiz celebrates the minds who first charted the cosmos.