New theory unifies dark matter and dark energy

Two mathematicians have, rather bravely, proposed a unified theory of dark matter and dark energy that alters Einstein's equations describing the fundamentals of gravity.

Gravity probe results confirm theory of relativity

Einstein famously pointed out to an admirer that while a thousand experiments couldn't prove him right, a single one could prove him wrong.

Spinning black holes could be visible from Earth

It should be possible to spot spinning black holes using ground-based telescopes, says a team of astronomers and physicists, because of their twisting effect on spacetime.