A new physics paper proposes modifications to Einstein’s theory of relativity that could solve one of the biggest issues ...

Physicists have started to treat a once-fringe idea with surprising seriousness: that our entire observable universe might be the interior of a black hole that formed in some larger cosmos. The notion ...

Emma Chapman reviews Battle of the Big Bang: The New Tales of Our Cosmic Origins by Niayesh Afshordi and Phil Halper Before the bang That the universe evolved from a "hot Big Bang" is not in question, ...