Space junk and orbital crowding are threatening the future of space activities. Learn more about space sustainability in this infographic.
Nearly 6,000 satellites circle our tiny planet. About 60% are space junk, 40% are operational—and hundreds more are launched every year.
There are already 1,500 satellites in orbit, but the Earth's exosphere could become even more crowded. Here's what satellites do, and what is on the horizon.
Elon Musk's successes are numerous. However, it's really his tragic failures, and his courage to continue after them, that is inspiring to entrepreneurs.