Although astronomers have found thousands of exoplanets, the number of confirmed exomoons—and exorings—is still zero. But ...

If you examine our solar system’s giant planets, you’ll notice right away that they’ve all got moons—a lot of moons. While ...

Planetary systems such as our solar system take hundreds of millions of years to evolve. Since humanity has only existed for a sliver of that time, astronomers have only observed planetary systems at ...

The web-like features are believed to be sculpted by ancient groundwater, offering new clues about the Red Planet's watery ...

Celeste Kidd's research challenges long-standing ideas from Jean Piaget about children's problem-solving abilities. Her ...