A mathematical investigation of galactic data suggests elusive dark matter is confined to the rules of gravity.

From galaxy rotation curves that defy Newton's laws to gravitational lensing that bends light in eerie ways, scientists have ...

The Hubble Space Telescope has been used to study NGC 1052-DF2 — a galaxy that is lacking dark matter. Credit: NASA's Goddard ...

Astronomers are rethinking one of cosmology’s biggest mysteries: dark energy. New findings show that evolving dark energy models, tied to ultra-light axion particles, may better fit the universe’s ...