Astronomers discover PicII‑503, a 14-billion-year-old star carrying primordial elements, challenging theories of early star ...

Still in its original galaxy, a rare holdout from the second generation of stars sheds new light on the origins of the elements—and how massive supernovae reshaped the cosmos ...

Analysis reveals what appears to be a channel of hot, low-density plasma stretching out from our solar system toward distant ...

Researchers at California's SLAC National Accelerator Laboratory are working to uncover what is believed to be the earliest ...

New 3D map of the early universe from HETDEX reveals faint hydrogen light linking galaxies 9 to 11 billion years ago.

Scientists are reconstructing the oldest known map of the night sky - long thought lost to time - by using X-rays to reveal its secrets.

After more than 2,000 years, the first-ever star map created by ancient astronomer Hipparchus has been uncovered using cutting-edge X-ray technology.

The map of the cosmos is thought to be the work of the renowned ancient astronomer Hipparchus, who lived from around 190 to ...

A unique technique allowed astronomers to see the early universe as a "sea of light" and explore the effects of gravity and dark energy on cosmic evolution.

Researchers are painstakingly reconstructing the oldest-known map of the night sky – previously thought lost forever – by X-raying parchment that contains the star catalog hidden beneath other text.

Imagine trying to reconstruct the history of a city by studying only its oldest surviving buildings. You can't watch it being built, you can't interview the architects, all you have are the structures ...

NEW YORK (AP) — Humans and Neanderthals cozied up from time to time when they lived in the same areas tens of thousands of years ago. But we don't know much about who got with whom, or why. A new ...