The Earth stands alone in the solar system as a habitable world, as far as we know. But that doesn’t mean we don’t get visitors, most often in the form of (usually harmless) asteroids. Some even ...

In a recent piece for my column The Universe, I wrote about the biggest black holes in the cosmos. Black holes are rather ...

Recently, an exoplanet just a short 15 light-years from Earth was discovered, setting the scientific community abuzz. This ...

Gauging the mass of a black hole is tricky, but astronomers have devised multiple methods to measure the heft of these galactic gluttons ...

In a once-a-year event, Saturn is about to reach opposition, with the ringed planet appearing its best and brightest as it ...

Firing a gun in space plays out very differently from that on Earth due to some bizarre physics. Here's everything that ...

A small asteroid has been quietly following Earth’s orbit for decades—unseen, unbothered and, until recently, completely ...

A massive space rock that once made its way onto a space agency's warning list for potentially dangerous objects is scheduled ...

This technology offers a solution to the continuous accumulation of space debris, such as defunct satellites and spent rocket stages.

New research warns that if we don't hit an asteroid in exactly the right spot, it could end up on a collision course with ...

While Saturn has been visible in the night sky all of September, this weekend, the ringed planet will shine its brightest.

Over 14,000 pieces of junk are clogging up low Earth orbit, but this number could be reduced by a new invention that involves ...