Scientists say it's the earliest galaxy seen doing this (so far). Astronomers have caught an immensely ancient galaxy ...

Astronomers have long struggled with a troubling puzzle: a significant portion of normal matter in the universe appeared to ...

Scientists analyzed data from 7 million galaxies and stumbled upon a missing piece of the cosmic puzzle. Thanks to the ...

For decades, scientists have known that ordinary matter — everything made of atoms — accounts for just 15% of the universe’s ...

Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t ...

"We want to understand how these galaxies are forming stars, how many stars they’re forming, and especially how the black ...

Primordial black holes are the earliest black holes thought to exist, and they vanished almost as fast as they came into being. As Stephen Hawking predicted, black holes don’t only draw particles in, ...

A map of the cosmic microwave background radiation obtained by the Atacama Cosmology ... The discovery also may change what ...

A new University of Kansas survey of distant galaxies using the James Webb Space Telescope reveals never-before-seen star ...

A distant galaxy that lay quiet for decades has suddenly stirred, lighting up in dramatic bursts that have caught astronomers ...

New research by the Atacama Cosmology Telescope (ACT) collaboration has produced the clearest images yet of the universe's infancy—the earliest cosmic time yet accessible to humans. Measuring ...