At this very moment, Earth and all other planets in our solar system are careening around the sun at unfathomable speeds. Planetary scientist James O'Donoghue is on a mission to help people visualize ...

Jupiter-like planet 8 UMi b, named Halla, orbits its host red giant star Baekdu closely. The red giant's merger with a white ...

Studying the orbits of thousands of exoplanets shows that large planets tend to have elliptical orbits, while smaller planets tend to have more circular orbits. This split coincides with several other ...

For years, the existence of a missing Planet 9 has been one of the predominate theories attempting to explain some of the eccentric orbits found in the outer Solar System. But so far, no such planet ...

Planets careen around the sun faster than a bullet, and there's a reason for that speed. The closer an object is to the sun, the faster it must move to avoid falling into our star. Planetary scientist ...