The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...

How far it is from the sun: 886 million miles (1.4 billion kilometers), on average How big it is: 72,400 miles (116,500 km) across, or almost 10 times the size of Earth. How many moons it has: At ...

Jupiter's Great Red Spot is one of the most recognizable features of our solar system; it's famously larger than Earth itself serves as an identifying mark on the largest of our gas giants. Consisting ...

Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known ...