NASA is launching a new lander to Mars, as well as a spacecraft that will get closer to the Sun than ever before. And two of NASA’s vehicles already in space will finally arrive at their intended targets... But it’s not just NASA that has a busy year ahead; the commercial space industry has a number of significant test flights planned, and the launch of one of the world’s most anticipated rockets, the Falcon Heavy, is slated for early 2018. And if all goes well, people may finally ride to space on private vehicles. Here are all the missions and...