A faint cosmic spin – one rotation per 500 billion years – could resolve the stubborn Hubble tension by tweaking standard ...

Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our ...

In fact, more than half of normal matter—half of the 15% of the universe's matter that is not dark matter—cannot be accounted ...

This has given scientists their best look yet at the Cosmic Microwave Background (CMB) - the leftover radiation from the Big Bang which fills the entire observable universe. What looks like clouds ...

Does the universe rotate? This theory could be the key to resolving the Hubble tension problem, one of the biggest challenges in modern cosmology. Scientists from Hungary and the USA have proposed ...

The map shows the cosmic microwave background (CMB), a faint remnant radiation from the early stages of the universe. It began as the earliest light just 380,000 years after the big bang ...

Richard Howard Where's the coldest spot in the universe? Not on the moon ... Not even in deepest outer space, which has an estimated background temperature of about minus 455°F.

Cosmic microwave background data support cosmology’s standard model but retain a mystery about the universe’s expansion rate.

The cooled remnant of the first light that permeated the universe is known as the cosmic microwave background—leftover radiation from the Big Bang that can still be detected in the distant universe.

Not everything we knew about the universe is wrong. But not not everything. The Dark Energy Spectroscopic Instrument (DESI) ...

A new analysis of astronomical data suggests unknown physics is at work assisting dark energy in acting almost as ...

In recent years, one of the most troubling puzzles in astrophysics has grown more urgent. Scientists have realized that the ...