Our sun is the center of our solar system. It provides light, warmth, and life to the earth. It's science and stuff. Here's a cool video made from over 200 million images of the sun over the course of 5 years. Check it.
NASA is partnering with private companies SpaceX and Boeing for manned flights to low-Earth orbit, a move that will end the agency’s expensive dependency on Russian launches to the International Space Station and free up resources for a potential manned Mars mission.