Named Chrysalis, the moon could have disintegrated during a close encounter with the gas giant roughly 100 million years ago.
New simulations show that planets around young, massive stars may have been captured or stolen rather than homegrown.
Helioseismology allows scientists to study the interior of the Sun, solve some basic physics mysteries, and forecast space weather.
By studying bits of rock scooped up by ancient glaciers, researchers have pinned down that recent glacial variability was driven, in part, by changes in the direction of Earth’s axis of rotation.
New simulations suggest that subsurface oceans on icy moons with small natural Rossby numbers may be dominated by rotational effects.
Tidally locked planets always present the same face to their host stars. What does this mean for their potential to support life?
Some exoplanets orbit their stars from pole to pole instead of across the equator. Why do they do that?
Venus’s heavy atmosphere tugs the planet’s surface enough to change the length of its day by up to 21 minutes.
Chemical compositions of rocks from Mars indicate that the earliest orbits of Jupiter and Saturn were more circular than they are today.