ABOVE THE ATLANTIC OCEAN -- Science teacher Mike Hickey has long understood the difference between mass and weight. Now, floating in zero gravity, he doesn't just understand it -- he feels it. Hickey, ...

Physics teacher Jane Shamitko is pretty sure she will never get to Mars. However, she can experiment with what would happen if she dropped a ball on the red planet, where gravity is one-third of that ...

Meditation has hit the mainstream, with celebrities and athletes singing its praises. But what about those people who swear they just can’t meditate? Crunch Gym in New York City might have the ...