Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Mercury orbits ...

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

While space harbors plenty of mysteries, it turns out that Uranus' smell isn't one of them. Here's the explanation for why it ...

Saturn may be difficult to see since it will be near the sun, according to StarWalk. It's not especially remarkable for a few ...

A third of planets orbiting close to red dwarf stars ... These exoplanets (planets orbiting a star other than our sun) orbit close to red dwarf stars that are smaller and cooler than the sun ...

Our planet is just the right distance from the Sun for life to exist. We call it a Goldilocks planet because the Earth’s temperature, like the porridge in the Goldilocks fairy tale, is not too ...

An exoplanet is a planet that orbits a star other than our sun. “But the planet is too close to the host star, closer than the habitable zone … even if the star is about 2,500 degrees cooler ...

February brings a rare planetary parade, with five bright planets in clear view and a special alignment of Mercury and Saturn ...

There are eight planets in the solar system, and each travels on its own path around the sun. But of these planets, which is nearest to the sun? Mercury is a strange little world. There are some ...