A vast river of neutral hydrogen bridges two galaxies that are beginning to enter the monstrous Virgo Cluster, and this ...

The known universe is full of shockingly huge things. Here are the largest planets, stars, galaxies, and structures we've ...

A Rutgers-led team of scientists has uncovered evidence of how galaxies expand by tracing the invisible scaffolding of the ...

A colossal 185,000 light-year-long bridge of neutral hydrogen gas linking two dwarf galaxies, NGC 4532 and DDO 137 ...

Looking back at the history of science, in the 19th century, astronomers noticed that the arrangement of galaxies appeared to ...

Primordial magnetic fields, billions of times weaker than a fridge magnet, may have left lasting imprints on the Universe.

Modern cosmology reveals a universe expanding uniformly without a spatial center or edge. The Big Bang wasn't a localized ...

A radical new theory regarding the origin of the universe suggests that gravitational waves, tiny ripples in spacetime first ...

Astronomers are using radio pulses from space to find missing baryonic matter and learn about supermassive black holes, ...

New radio astronomy results reveal how galaxies exchange gas with the intergalactic medium – the raw material for stars and ...

Tiny red objects spotted by NASA's James Webb Space Telescope (JWST) are offering scientists new insights into the origins of ...

Astronomers use many methods to determine this number, including gravitational lensing, the universe’s expansion rate, and ...