It’s been nearly 2 centuries since a planet was discovered in the solar system. But now scientists think they’ve uncovered ...

If you're anything like us you've probably had the order of the planets in the Solar System memorized since school, with the older amongst you cursed to put Pluto in there despite it being downgraded ...

A highly stylized rendition of our solar system NASA/JPL If someone asked which planet was closest to Earth, you’d be pretty certain — it’s Venus. We measure distances in the solar system in terms of ...

HONOLULU (HawaiiNewsNow) - What is the closest planet to Earth? Nope, you’re wrong. We always think of this in terms of distance from the Sun. But that’s not the same as the distance between planets.

This video explores how long it really takes to reach the outer planets: Jupiter, Saturn, Uranus, and Pluto by tracing past missions, their routes, and the engineering trade-offs between speed, fuel, ...

Recipe: Take a rocky mass [about 12.8 thousand kilometers (nearly 8 thousand miles) wide], add carbon dioxide, water vapor and methane. Place in stable, circular orbit, the same distance from a ...