NASA is sounding a clear alarm about the way SpaceX is reshaping low orbit, warning that the company’s satellite swarms and ...

Will the next great cosmic discovery be erased by a broadband satellite?” A new NASA led study warns that the accelerating ...

An international team of astronomers, led by SRON, has observed a sudden outburst of matter near the supermassive black hole ...

A decade-long investigation into puzzling neutrino behavior has now ruled out one of the most widely discussed explanations: the sterile neutrino.

Clues about how galaxies like our Milky Way form and evolve and why their stars show surprising chemical patterns have been ...

A new study revisits ancient Chinese records to explore whether a comet could explain the Star of Bethlehem described in ...

Astronomers at the University of North Carolina at Chapel Hill have helped uncover new clues about the longest-lasting cosmic ...

Dark matter is special in that it doesn't emit, absorb or interact with light, so science had to find a more creative way to ...

Tyson’s ultimate goal was to image large swathes of the sky, measuring how galaxies’ shapes distorted as their light ...

Space weather is notoriously hard to predict, but one forecast map shows parts of Indiana might see the northern lights low on the horizon Dec. 8.

“The fact that we can now watch stars explode and immediately see the structure of the material being blasted into space is ...

Catching the best Geminid meteor shower display requires planning, patience, and weather monitoring. Here’s where, when, and ...