United flight with over 200 passengers declares 'mayday' with engine failure after takeoff from D.C. You Should Never Order ...

Webb has provided an unprecedentedly rich and detailed glimpse into the distant Universe, capturing thousands of galaxies, ...

HeH⁺ formed over 13 billion years ago when the universe was still dark and cooling. The molecule itself was the product of a ...

Over 20 years ago, the Hubble Space Telescope looked at a little patch of sky for days, with this methodical approach ...

Webb has been orbiting more than a million miles from Earth, capturing breathtaking images of deep space. But how does it ...

A new theory promises to simplify our approach to the universe's earliest moments, but some cosmologists say further mathematical scrutiny is warranted.

Observing this distant epoch is notoriously difficult, astronomers say. At that time, the universe was filled with a dense ...

German scientists have successfully recreated the universe's first molecule, helium hydride ion, simulating conditions from over 13 billion years ago.

Speculative elements may not be necessary to explain the cosmos. A team of researchers, led by Raúl Jiménez, an ICREA ...

Could our location in space be skewing cosmic measurements? A new study suggests a giant void may explain the Hubble tension.

Researchers aim to study the universe’s 'Dark Ages' using a quiet orbit around the Moon. Their small satellite will search for ancient hydrogen signals and cosmic clues. Astronomers hope to uncover in ...

Astronomers could use specific radio signals from the universe's earliest epoch to "weigh" the first stars in the cosmos. The investigation could reveal more about the so-called Cosmic Dawn, the ...