For astronomers studying dark matter, the Bullet Cluster is one of the greatest laboratories in the universe. Follow-up ...

A swarm of galaxies called the Bullet Cluster is the biggest, best natural laboratory for studying dark matter that ...

You can journey to the ends of the earth in search of success,” 19th-century Baptist preacher Russell Conwell is said to have ...

Does dark matter interact with itself? The answer may lie in vast clusters of colliding galaxies. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Cosmologists have long been on the hunt for dark matter, which makes up 80 percent of the mass in the universe, and yet is still mysterious. As its name suggests, dark matter doesn’t emit light, ...

The night sky of Aspen is a wonderland for stargazers, dark and transparent enough for the naked eye to discern ...

For decades, the prevailing cosmological model has placed dark matter and dark energy at the center of our understanding of the universe’s structure and evolution. These invisible components were ...

The Antlia Cluster is located about 130 million light-years from Earth. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Astronomers have captured ...

What We Thought We Knew Dark matter has long been a cornerstone of modern cosmology, introduced to explain observed gravitational effects that cannot be accounted for by visible matter alone. Since ...

Twelve million light-years away lies the galactic masterpiece Messier 83, also known as the Southern Pinwheel Galaxy. Its swirling spiral arms display a high rate of star formation and host six ...

Dark energy makes up about 70% of the universe and causes its expansion to accelerate. It's different from dark matter; dark energy pushes space apart, while dark matter pulls things together. We ...

The faint glow of individual stars stretching between two bright galaxies indicates that the galaxies are actively merging while the galaxy clusters that surround them merge as well. The image was ...