The largest survey of exoplanets using an observatory atop Maunakea on the Big Island confirms a long-predicted relationship between planetary mass and rotation — putting a new spin on planet ...

Planets with a strong magnetic field can create peculiar environments in their immediate vicinity. Earth’s magnetosphere ...

Beyond the asteroid belt lies a vast region dominated by giant planets and frozen worlds. This video explores the colossal storms of Jupiter, the magnificent rings of Saturn, the unusual sideways ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...