Morning Overview on MSN

What physics really says about time travel possibilities

Time travel has shifted from pure fantasy to a serious, if highly constrained, topic in modern physics. The equations that describe gravity, quantum fields and the structure of spacetime now allow ...
Live Science on MSN

'Einstein's equations need to be refined': Tweaks to general relativity could finally explain what lies at the heart of a black hole

Theoretical physicists have proposed a potential solution to one of the most puzzling problems in modern physics: the black ...