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 ...

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

It eases my embarrassment somewhat to know that many astronomers have made similar mistakes. My favorite one involves Kat ...

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

Today:Early fog in the far southwest clears quickly. Most areas stay dry with sunshine and variable cloud, though northern and northeastern regions may see isolated showers. Light winds overall, ...

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 ...