Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t ...

A paper published in 2024 theorizes that time may have existed before the Big Bang, but we're still not entirely sure.

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

When cosmologists used different ways to measure the value of sigma 8, a number that denotes how clumpy the universe is, they ...

Scientists analyzed data from 7 million galaxies and stumbled upon a missing piece of the cosmic puzzle. Thanks to the ...

The other method utilizes the cosmic microwave background, the radiation present 380,000 years following the Big Bang.

A low-temperature chemical reaction between helium ions and carbon monoxide can be slowed by microwave excitation of the ...

It took a full year of testing, experimenting and calculating for them and another group of researchers at Princeton to explain the phenomenon: It was cosmic microwave background radiation ...

For decades, astronomers were certain that half of the ordinary matter in the universe — protons and neutrons, the building ...

These halos are typically too faint to be seen by normal methods. So instead, the team measured how much the gas dimmed or ...

Research done by the Atacama Cosmology Telescope (ACT) project produced the clearest and most accurate images of the universe ...

which is believed to have left traces in the cosmic microwave background radiation. At 4,980 meters above sea level, the Salta altiplano is an ideal place to place a telescope of this style for ...