Add Yahoo as a preferred source to see more of our stories on Google. Dark matter and gas (Illustrative). (photo credit: Wikimedia Commons) The researchers recorded a small number of unexplained ...

Astronomers got their first hints that the universe is filled with some invisible, mysterious, massive substance back in the 1930’s—something that must be there and holding things together ...

For about 50 years, the scientific community has been grappling with a substantial problem: There isn’t enough visible matter in the universe.Related video above: Space junk crashed through family's ...

In a new study, scientists began pondering a pretty wild question: What if black holes can convert dead star matter into dark energy, the mystery force driving the acceleration of the expansion of the ...

A new study suggests that failing to detect dark matter signals in some galaxies may not contradict evidence seen in our own.

A strange, starless cloud on the edge of a nearby galaxy is forcing astronomers to confront one of the biggest unknowns in physics. The object, nicknamed Cloud‑9, looks like a wisp of hydrogen gas, ...

Dark matter may consist of two particles, explaining why only the Milky Way shows a strange gamma-ray signal while smaller galaxies do not.

Does dark matter follow the same laws as ordinary matter? The mystery of this invisible and hypothetical component of our universe—which neither emits nor reflects light—remains unsolved. A team ...

A new study from Tel Aviv University has predicted, for the first time, the groundbreaking results that can be obtained from detecting radio waves coming to us from the early Universe. The findings ...