A persistent, nagging problem with the expansion speed of the Universe may not require a rewrite of everything we know about physics. New measurements taken using the James Webb Space Telescope ...

For the past few years, a series of controversies have rocked the well-established field of cosmology. In a nutshell, the predictions of the standard model of the universe appear to be at odds with ...

Early 20th-century cosmology transitioned from galactic astronomy with Edwin Hubble's discovery of external galaxies and the universe's expansion, which Albert Einstein's general relativity later ...

When Japanese astronaut Kimiya Yui heads to the International Space Station (ISS) next year, he will have two new skincare items in his bag that are especially designed for the rigors of space travel.

Astronomers have assumed for decades that the Universe is expanding at the same rate in all directions. A new study based on data from ESA’s XMM-Newton, NASA’s Chandra and the German-led ROSAT X-ray ...

Most of the universe is missing. Only 5% of it is normal matter, which makes up all the people, planets and stars we can see; the other 95% consists of mysterious dark matter and dark energy.

While headlines around the world claimed that ancient galaxies discovered by the James Webb Space Telescope were "breaking" our understanding of the Big Bang, the truth is much more nuanced — and much ...

About a year after launching into orbit around the Sun, the James Webb Space Telescope began imaging an abundance of little red dots, which scientists called, um, “little red dots.” I know—not only is ...

The cracks in cosmology were supposed to take a while to appear. But when the James Webb Space Telescope (JWST) opened its lens last spring, extremely distant yet very bright galaxies immediately ...