A strange "chirping" signal from a distant supernova has revealed the birth of a magnetar, confirming that these incredibly magnetic neutron stars can power the universe's brightest stellar explosions ...

June 16, 2026 A new SETI study suggests we may be overlooking alien signals not because they aren't there, but because their own stars are scrambling them before they escape into space. Turbulent ...

At the outer reaches of our solar system, astronomers have stumbled upon a perplexing icy object known as 2002 XV93, and it ...

Faced with observations of early black holes and galaxies that weren’t expected to exist, scientists have come up with a ...

Massive galaxies? Dusty black holes? Black hole stars? Scientists have raised a lot of theories around what the crimson blobs ...

Every 40 seconds of nighttime for the next 10 years, a camera the size of a small car will capture strikingly detailed images of the southern sky, stitching together a time-lapse panorama of ...

On Jan. 26, 2026, the Submillimeter Array (SMA) on Maunakea crossed an important threshold for time-domain astronomy. For the ...

In a blow to Donald Trump’s agenda, America’s Supreme Court blocked an executive order that would have denied birthright ...

Second only to black holes, neutron stars—incredibly dense star remnants—are the densest objects in the universe. When ...

A distant star-forming galaxy nicknamed the “Shadow Blaster” could have sent a ghostly cosmic particle hurtling toward Earth.

Informed by science from the Smithsonian Astrophysical Observatory and astronomers worldwide, this “documentary that you can walk through” visualizes the cosmos in a 3-D introduction to the universe ...