Our solar system may have hosted up to six giant planets in its first hundred million years, a new study suggests. The ...

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NASA's Hubble Space Telescope and New Horizons spacecraft simultaneously set their sights on Uranus recently, allowing scientists to make a direct comparison of the planet from two very different ...

For the first time, scientists have captured images of auroras above the giant ice planet Uranus, finding further evidence of just how peculiar a world that distant planet is. Detected by means of ...

Two of Earth’s neighbors are on track to be in opposition, providing amateur and professional astronomers a clearer, brighter view of them both. Beginning on Thursday until Friday, Nov. 3, Jupiter ...