For some time, astronomers have theorized that there is a connection between planetary mass and rotation. In the solar system ...

For decades, Saturn has been playing a strange trick on scientists. Depending on how ...

The largest survey of exoplanets using an observatory atop Mauna Kea on the Big Island confirms a long-predicted relationship ...

In the future, this feature could be used to shed light on chemistry and even the birth of planetary systems.

Find out what’s speeding up Earth’s rotation and why it may force timekeepers to delete a second ...

We have all been taught in school that planets revolve in the same direction as the Earth, i.e., in the counterclockwise direction. However, the universe never ceases to amaze us with its unexpected ...

Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Mars is rotating more quickly than it ...

Context. As a star evolves, the planet orbits change with time due to tidal interactions, stellar mass losses, friction and gravitational drag forces, mass accretion and evaporation on/by the planet.

This image illustrates how a star illuminates and heats the day side of a synchronously rotating planet, and the phenomena of transit and occultation (eclipse). The bottom of the figure shows the ...