O'Leary Ventures Chairman Kevin O'Leary reacts to the EU floating zero-for-zero tariffs to the U.S. on industrial goods. Ponder the meaning of life and the seemingly contradictory idea that nothing ...

As an astrophysicist, Neil deGrasse Tyson contemplates the depths of time and space, so it's only natural we asked him about the meaning ... and everything else about life in the universe.