Elliptical galaxies are some of the oldest types of galaxies in the universe. They formed relatively quickly after the Big ...

Repulsive gravity at the quantum scale would have flattened out inhomogeneities in the early universe First light: The cosmic ...

The "afterglow" of the universe is an important piece of evidence for the Big Bang. This background radiation also provides ...

Scientists are using cosmic distortions in light to test a bold idea: that the Universe might not be as symmetrical as we’ve ...

A never-before-seen image of the cosmic microwave background, combining data from the Atacama Cosmology Telescope (ACT) and the Planck satellite, offers a high-definition view of the early Universe.

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

The universe began with a bang—an explosion so intense, it forged the fabric of space and time itself. This pivotal moment, ...

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

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

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

Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our noses all this time. Models of how the universe has evolved since the Big ...

Researchers suggest the universe's background radiation has been overestimated, potentially challenging the standard model of ...