The cosmic background radiation currently emits mainly at microwave wavelengths; its radiation intensity peaks at a wavelength of approximately 2 millimeters (about 0.1 inch).

Spectacular scenes show two galaxies having a ‘cosmic joust’. Astronomers have witnessed for the first time a violent space collision in which one galaxy pierces another with intense radiation.

All the latest science news on cosmic background radiation from Phys.org. Find the latest news, advancements, and breakthroughs.

New research has unveiled images of the universe in its infancy—a mere 388,000 after the Big Bang. ... The image shows the cosmic microwave background radiation visible 380,000 years after the ...

New research by the Atacama Cosmology Telescope (ACT) collaboration has produced the clearest images yet of the universe's infancy—the earliest cosmic time yet accessible to humans. Measuring ...

The Cosmic Microwave Background is the oldest and most distant light that we can see in the universe. It comes from soon after the Big Bang, which is considered to be the beginning of the universe.

This afterglow—the "cosmic microwave background" (CMB), the relic radiation left behind by the Big Bang—has given astronomers insights into the birth of the universe and helped shape the ...

If the universe had holes—and therefore also loops—this fact should be reflected in the data of the cosmic background radiation. Yet in searches from the 2000s and 2010s, experts found nothing.

About half of the non-dark matter in the universe cannot be accounted for by stars and galaxies alone. Now, scientists say previously undetected clouds of hydrogen gas could finally reveal it.