if( aicp_can_see_ads() ) { $adCode = '
'; return $adCode; } else { return '
'; }

Is our universe the only universe?

Is there more than one universe? In this visually rich, action-packed talk, Brian Greene shows how the unanswered questions of physics (starting with a big one: What caused the Big Bang?) have led to the theory that our own universe is just one of many in the “multiverse.”


Talk by Brian Greene.