The Higgs boson particle could have kept our universe from collapsing within a larger multiverse, physicists say.
Scientists have found "compelling evidence" that Saturn's "Death Star" moon is hiding an ocean just beneath its surface.
How long could you walk in a straight line? What if the path meandered?
A young female macaque fought her own mother to seize control of her troop for the first time in 70 years. Now her reign is in jeopardy.