An alternative model in which the universe is 26.7 billion years old and needs neither dark matter nor dark energy has held up against several major cosmology tests, according to a new University of ...

Unlike for dark matter, scientists have no plausible explanation for dark energy. According to one idea, dark energy is a ...

Add Yahoo as a preferred source to see more of our stories on Google. The first time I heard about galaxies without dark matter, I was sitting in my very first graduate class at the University of São ...

Dark matter may be far more complicated than scientists once believed. A new study suggests it could consist of at least two different kinds of particles that slowly separate over time, with heavier ...

Jan. 19, 2026 Physicists have unveiled a new way to simulate a mysterious form of dark matter that can collide with itself but not with normal matter. This self-interacting dark matter may trigger a ...

Add Yahoo as a preferred source to see more of our stories on Google. David Li's team at the University of Toronto pulled off something unprecedented: finding a galaxy through its survivors. While the ...

UT Austin theoretical astrophysicist Katherine Freese shares what we know (and don’t) about the invisible substance shaping ...

A Rutgers-led team of scientists has uncovered evidence of how galaxies expand by tracing the invisible scaffolding of the universe created by a mysterious substance known as dark matter. "Analyzing ...

Black holes more massive than entire galaxies are not a major component of dark matter, the mysterious stuff that's thought to make up most of the matter in the cosmos, a new study finds.

Galaxies are far more than the sum of their stars. Long before stars even formed, dark matter clumped up and drew regular matter together with its gravity, providing the invisible scaffolding upon ...

What can galaxies smaller than our Milky Way Galaxy teach scientists about dark matter, which remains one of the most mysterious substances in the universe? This is what a recent study published in ...