A mathematical investigation of galactic data suggests elusive dark matter is confined to the rules of gravity.
The Hubble Space Telescope has been used to study NGC 1052-DF2 — a galaxy that is lacking dark matter. Credit: NASA's Goddard ...
From galaxy rotation curves that defy Newton's laws to gravitational lensing that bends light in eerie ways, scientists have ...
New research suggests dark matter behaves like normal matter under gravity but leaves room for a weak, unknown force.