The mysteries of the universe are captivating American viewers once again in Fox’s “Cosmos: A Spacetime Odyssey,” more than three decades after Carl Sagan’s original series explored the wonders of ...

He works in mysterious ways.

Brian Greene is going to let you in on a secret: We've all been deceived. Our perceptions of time and space have led us astray. Much of what we thought we knew about our universe-that the past has ...