Updated measurements from NASA’s Juno spacecraft could help researchers better understand the planet's mysterious interior, ...

With this new survey, astronomers have gained a peek inside a stage of exoplanet system formation they have yet to fully ...

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't ...

New measurements from the Juno probe show that the largest planet in the solar system is slightly smaller and flatter than ...

Add Yahoo as a preferred source to see more of our stories on Google. This artist’s concept depicts one of the solar system’s inner planets slamming into Earth after being nudged on a collision course ...

This gas cloud located 500 light years away from our solar system is about to become a planet.This process usually takes a ...

Stargazers can see six planets all in one evening during the second month of the year, especially Mercury, which is usually ...

When the Sun runs out of hydrogen fuel and expands into a red giant, it will eventually encompass the innermost planets of the solar system, out to about Earth’s orbit. Being closer to our enlarged ...

This weekend, six planets are set to share the sky in a rare “planet parade,” giving stargazers a short but magical window to ...

With a lot of talk about space recently, have you ever wondered which are the hottest planets in the solar system? You'd think the closer you are to the sun, the hotter they must be. Now that's mostly ...