This rapid increase in satellites that no longer serve a purpose will require new methods to deal with them - most commonly through other satellites known as on-orbit servicers (OOSs). Depending on ...

This is a manifesto disguised as a novel and makes no secret of its intent. The characters feel undifferentiated like ...

Human space exploration has sparked fresh debates about our space activities and any odd objects we depart there. Recently, ...

The idea of cosmic threats to Earth almost sounds like the stuff of fiction. But while alien invasions may be far fetched, ...

Every day, about 48.5 tons of space rock hurtle towards Earth. Meteorites that fall into the ocean are never recovered. But ...

Harvard astronomers were left red-faced after mistaking Elon Musk's orbiting Tesla Roadster for a potentially dangerous ...

For a few months, Earth had a second moon — a tiny asteroid that may have been a piece of our own Moon ...

For a brief, but exciting, time last year, Earth had two moons. A small asteroid lingered close to our planet in its orbit ...

The Blue Ghost lunar mission has captured a gorgeous image of Earth as it ramps up its journey toward the moon.

An unusual looking 33-foot-long object discovered orbiting Earth last year may have come from a surprising place.

The asteroid is about 33 feet (10 meters) across and poses no danger to Earth. It joins another known lunar asteroid ...