A faint radio "whisper" from ancient hydrogen reveals the universe was heating up long before it filled with starlight.

New observations from the James Webb Space Telescope hint that the universe’s first stars might not have been ordinary fusion ...

On human timescales, the universe may as well be eternal. It’ll be here long after our species and our planet are gone, but ...

After a century of observations spanning the breadth of the cosmos and theoretical insights that push humanity's vision of ...

NASA's SPHEREx is exploring the galaxies to answer the question of where we all come from while sending back jaw-dropping ...

For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...

According to data from the Hubble and James Webb Space Telescopes, the origins of the free-flying photons in the early cosmic ...

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

Scientists found where the universe’s missing matter went. Black holes have been pushing it far away from galaxies.

ORCs are vast, faint rings of radio energy that surround galaxies and can be detected only in radio wavelengths of the ...

A discovery of binary stars could be the first step in building a more complete picture of how our galaxy formed, according ...

A team of scientists has uncovered evidence of how galaxies expand by tracing the invisible scaffolding of the universe created by a mysterious substance known as dark matter. “Analyzing these ...