A planet's north pole is defined by its position relative to the solar system's invariable plane. The invariable plane is a fixed reference point perpendicular to the solar system's rotation. A planet ...

Discover the only planet in our solar system that rotates clockwise. Learn why this 'rebel' planet spins backwards, how a collision changed its history, and why its days are longer than its years.

We have all been taught in school that planets revolve in the same direction as the Earth, i.e., in the counterclockwise ...

The planets within our solar system are in constant motion in their orbits and as they spin on their axes. All planets in our solar system revolve around the Sun. But the time they take to complete ...

Astronomers using NASA’s Hubble Space Telescope have measured the rotation rate of an extreme exoplanet by observing the varied brightness in its atmosphere. This is the first measurement of the ...