Everyone is talking about Snapchat, right? It’s one of the hippest messaging services around, but it’s as confusing as it is exciting. I know I had a hard time understanding it the first time I used it.
What would it be like to fly a spacecraft into a black hole? Marcus Woo investigates. Something about a black hole just pulls you in. Sure, its gravity is so strong that not even light can elude its grasp.