Astronomers have confirmed the existence of four rocky planets orbiting Barnard’s Star, our nearest solitary stellar neighbor ...

Saturn, the sixth planet from the Sun, captivates scientists with its massive size, stunning rings, and diverse moons.

Io is an incredibly active and extreme place, with glistening lava lakes and volcanic eruptions shooting sulfur and magma to ...

Solar eclipses have fascinated observers for thousands of years. The ancient Greek philosopher Aristotle pointed to the round shadows that appear during eclipses as evidence that the Earth is round.

Each of the planets, labeled b, c, d, and e, has a mass between 20% and 30% of Earth's, making them among the smallest yet ...

Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...

The world of Sailor Moon does not just relate to our own solar system, but the many unknown planets from the original story ...

The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...

Experts are not sure why Neptune's auroras can be seen around the planet's "mid-latitudes," and not the north and south poles ...

A new classification scheme may help us better understand planet formation — including the history of our own family of worlds.