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

Mars could be acting a little strangely in future, and scientists believe its behaviour could help to indicate dark matter. The new research could have major consequences for the study of the mysterious material in the universe.

Watching for changes in the Red Planet’s orbit over time could be a new way to detect passing dark matter. MIT physicists suggest that primordial black holes, formed just after the Big Bang, could constitute most of the universe's dark matter.