Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

The galaxy sits in a sweet spot that allows astronomers to study it in ways that can't be applied to even our own Milky Way ...

Take a tour of the Hydra I galaxy cluster. A galaxy in the region, NGC 3312, is "losing cold gas as it moves through the hot ...

Galaxies shine in a rainbow of emissions from gas, dust, and stars. Each of these building blocks emits light at specific ...

A surprising new look at the Milky Way has scientists rethinking everything we thought we knew about our home galaxy. Thanks ...

Hubble Space Telescope snapped an image of UGC 11397, a spiral galaxy situated in the constellation Lyra, about 250 million ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

Astronomers uncover how massive stars form by tracking interstellar ammonia. Using the U.S. National Science Foundation ...

Learn how scientists found the universe's missing matter hiding in a massive cosmic filament stretching 23.5 million ...

A possible new "jellyfish" galaxy discovered by the James Webb Space Telescope could deepen our understanding of galaxy evolution and star formation.

The Sculptor galaxy is similar in many respects to our Milky Way. Read more at straitstimes.com. Read more at straitstimes.com.

Astronomers have discovered a huge filament of hot gas bridging four galaxy clusters. At 10 times as massive as our galaxy, the thread could contain some of the universe's 'missing' matter ...