If you ever go hiking on an asteroid, you’ll want to pack one of Robert Gaskell’s maps. Gaskell, a senior scientist at the Planetary Science Institute, is to our solar system’s frontier what Lewis and ...

A massive interstellar object passing through our solar system during its formative years likely altered the orbits of planets into trajectories observed today, a new study says. Interactions with ...

Far beyond Neptune, at the far outer rim of our Solar System, astronomers have spotted what looks like a hidden “structure” ...

Meet the surprising, oddball worlds moving around our solar system. From meteorites that impact Earth, to a moon that orbits backwards, to an imposter lurking in the asteroid belt, a variety of ...

The great planetary instability coincides with the collision that formed Earth's moon — could the two events be linked? When you purchase through links on our site, we may earn an affiliate commission ...