Last night, the firm, which was cofounded by Netscape inventor Marc Andreessen and has invested in big names like Airbnb, Buzzfeed, Facebook, and Twitter, put up an excellent list of 16 metrics that every
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.