Low-Earth orbit is more crowded—and fragile—than it looks. Satellites constantly weave past each other, burning fuel and ...

SpaceX this week broke its annual launch record with its trusty Falcon 9 rocket — and it’s only October. Continuing with its busy schedule of launches, the spaceflight company successfully delivered ...

There are about 15,000 satellites orbiting Earth. Most of them, like the International Space Station and the Hubble Telescope, reside in low Earth orbit, or LEO, which tops out at about 1,200 miles (2 ...