A decade of observations of four planets around the young planetary system V1298 Tau revealed a rare, long-sought missing ...

Scientists measured mass and distance of free floating planet drifting through space without star for first time.

Some 350 light-years away, the V1298 Tau system features an infant sun-like star, just 23 million years old, orbited by four ...

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 ...

Explore seven factual aspects of Jupiter, including its size, moons, rotation, atmosphere, rings, formation, and magnetic field based on NASA findings.

A rover recently captured sounds of lightning crackling on Mars, over a decade after scientists uncovered the first evidence ...

Discover the only planet in our solar system that rotates clockwise. Learn why this 'rebel' planet spins backwards, how a ...

The moon's orbit isn't a perfect circle. Instead, it's more stretched out, kind of like an oval, which means its distance from Earth varies by about 30,000 miles (48,000 km). The surface of the moon ...

The planet, if it is indeed a planet, is one of the most massive ever detected around a small star. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

A rare celestial spectacle is gracing the night sky this February, as seven planets — Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune — are in the post-sunset sky in a phenomenon most ...

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 ...