NASA's SPHEREx observatory undergoes testing at BAE Systems in Boulder, Colorado, in August 2024. Launching no earlier than Feb. 27 ...

Shaped like a megaphone, the upcoming mission will map the entire sky in infrared light to answer big questions about the ...

In NASA's latest survey, experts detected black holes hidden behind thick clouds of gas and dust and others that are not.

Scientists have been scratching their heads for ages, trying to figure out why some galaxies just stop churning out stars.

Astronomers discovered ultra-faint dwarf galaxies, frozen for 13 billion years, offering rare insights into early cosmic ...

"This is the first solid evidence that helical magnetic fields can explain astrophysical jets at different scales." ...

The University of California San Diego is positioning itself as a leader in astronomical research as its new Department of ...

A mysterious fast radio burst from a dead galaxy challenges theories, hinting at unknown cosmic forces producing powerful ...

Rare ultra-faint dwarf galaxies beyond the influence of other galaxies show evidence that star formation was stifled long ago ...

After decades of study, scientists sound genuinely optimistic about the possibility of detecting primordial black holes, which might explain dark matter.

Using the Hubble Space Telescope (HST), astronomers from the University of California Santa Cruz (UCSC) and elsewhere have ...

Unusual detection bolsters evidence that the mysterious signals can be caused by different astrophysical events.