retrograde orbit

A Stellar Flyby Jumbled Up the Outer Solar System

An ancient passerby may have visited the Sun and inadvertently helped shape the Solar System into what it is today.…

3 months ago

Oumuamua was Just the Beginning. Astronomers Find an Interstellar Asteroid Orbiting Retrograde near Jupiter.

A new study by a pair of astronomers has indicated that near Jupiter, there is an interstellar asteroid that has…

7 years ago