Low Earth orbit has shifted from a quiet scientific outpost to one of the busiest pieces of real estate in human history. With tens of thousands of satellites and fragments now circling overhead, ...

Add Yahoo as a preferred source to see more of our stories on Google. Earth's orbital overcrowding is approaching a breaking point, according to a new analysis using a warning metric called the Crash ...

When a Russian satellite shattered in orbit, the fragments did not simply drift away into the void. They spread into busy traffic lanes of low Earth orbit, forcing astronauts to scramble for shelter ...

Now decades after the fabled Space Race of the 1950 and '60s, humanity's presence in space has dramatically increased. While it is remarkable that humans have so much floating around in Earth's orbit, ...

Cosmic “touchdown airbursts” — explosions of comets or asteroids above Earth’s surface — may be far more common and destructive than previously thought, according to new research. Unlike ...