Imagine you're an alien living in the Andromeda galaxy, 2.5 million light-years away, peering back at Earth through a massive ...

A distant cluster of galaxies is wrapped in a vast halo of high-energy particles that could be the work of supermassive black ...

"We have discovered a galaxy that has been 'perfectly preserved' for billions of years, a true archaeological find that tells ...

University of Arizona astrophysicist Erika Hamden takes readers on a romp through a "Weird Universe" in her debut popular ...

LOFAR detects a faint radio 'mini-halo' from 3.8 billion years ago, revealing how galaxy clusters evolved in the early ...

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the ...

Seen as a long strand with smaller threads branching, the Quipu superstructure contains 68 galaxy clusters spanning 1.4 ...

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.

Astronomers studying a distant galaxy cluster stumbled upon ancient radio signals that might hold clues to the formation of ...

Astronomers have found a distant galaxy referred to as a cosmic fossil that has stayed virtually unchanged, or frozen in time ...

Astronomers have unearthed a 'perfectly preserved' galaxy, offering insights into the universe's evolution and the birth of ...

A faint radio glow reveals a million-light-year halo enveloping one of the earliest galaxy clusters, hinting that energetic ...