The universe’s hidden mass may be made of black holes, which could wobble the planets of the solar system when they pass by

A new paper explores the idea of asteroid-sized objects that may be causing gravitational ripples in our cosmic neighborhood.

Scientists say microscopic black holes could explain the elusive "dark matter" that makes up a quarter of all matter in the universe. But can it be proven?

Researchers at MIT suggest that the microscopic "primordial black holes" could be blasting through our solar system at least once every ten years. These tiny black holes could be extremely dense, they suggest,

Astronomers have observed three types of black holes in the universe. Stellar-mass black holes formed from the collapse of a massive star, intermediate mass black holes found in some star clusters, and supermassive black holes that lurk in the centers of galaxies.

A bold new study in Physical Review suggests that a wobble detected in Mars' orbit could be the result of dark matter made up of primordial black holes.