Astronomers have proposed a radical idea: dark matter—the mysterious substance making up most of the universe’s mass, might ...

A new computational breakthrough is giving scientists a clearer view into how dark matter structures evolve. Dark matter has remained one of the biggest mysteries in cosmology for almost a hundred ...

A mysterious excess of far-ultraviolet light seen across the Milky Way could come from the annihilation of clumpy dark matter ...

In addition, astrophysical observations had revealed that occasionally, white dwarfs would cool off way faster than expected.

Dark matter, the mysterious substance that makes up roughly 80 percent of all the matter in the universe, may have been forged before our cosmos was even born. Scientists have long theorized as to ...

By studying faint distortions in galaxy shapes across a vast region of sky, scientists probed the hidden structure of the universe. In the standard picture of the universe, nearly everything is hidden ...

A simple explanation of dark matter and antimatter, how they differ, how scientists study them, and why both are important to understanding the universe.

Searches for dark matter particles have come up empty so far, driving theorists to get more creative with their ideas.

But the Big Bang theory predicts that about 5% of the universe's contents should be atoms made of protons, neutrons and ...

In recent years, astronomers have become increasingly interested in a theoretical particle known as the axion, which was ...

Scientists uncover the universe’s most massive object, glowing yellow, blue, and pink at 100 million °C, while a true inferno ...

The universe is made up of three components: normal or visible matter (5%), dark matter (27%), and dark energy (68%). NASA's Goddard Space Flight Center From stars and galaxies to the shoes on your ...