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 ...

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

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

Astronomers have revisited data from a dramatic collision of neutron stars to help resolve the infamous ‘Hubble tension’.

Scientists still don’t know where ghostly particles called neutrinos originate. A distant galaxy could be a potential source.

Nearly every massive galaxy observed hosts a supermassive black hole at its center. NASA's James Webb Space Telescope has discovered that some of these supermassive black holes may even be too big for ...

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 ...

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NASA confirmed a meteor following a NOAA satellite's detection May 30 of a bright flash over Cape Cod Bay. Witness reports are essential in the detection of meteors and other events involving ...