The shape of a planet's orbit is one of its fundamental properties, along with its size and distance from its host star.

Planets change orbit shape around Neptune’s size. Metal-rich stars help giant planets form. Eccentric orbits suggest chaotic planet formation.

IT’S been nearly 40 years since the first planet outside of our Solar System was discovered. Since then, more than 5,800 ...

How does a planet’s size influence its orbit around its parent star? This is what a recent study published in the Proceedings of the National Academy | Space ...

Astronomers have discovered nearly 6,000 planets beyond our own solar system. Here's how — and how we'll find even more.

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

Earth has a nearly circular orbit, but some planets outside our solar ... The researchers used data collected by NASA's Kepler telescope, which monitored 150,000 stars and measured dips in their ...

It takes Kepler-452b just 20 days longer to orbit its star than Earth does - making our year roughly the same length. All you need to know about planets in our solar system ...

The total lunar eclipse on March 13-14 will plunge moon missions into darkness. What will happen to the lunar spacecraft?

There are 10 major NASA facilities, including the Kennedy Space Center in Florida and the Johnson Space Center in Houston. October 4, 1957 - The Soviets launch Sputnik 1, the world’s first artificial ...