The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe.

NASA's Juno spacecraft made a close flyby of Jupiter moon lo. See an animation of the images the probe captured created by Koji Kuramura and Gerald Eichstädt. Credit: NASA/JPL-Caltech/SwRI/MSSS | ...

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however, NASA's ...

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

High-pressure experiments generated the first direct observation of plastic ice, which has qualities of both crystalline ice and liquid water.

From supermoons to an eclipse and star parties at national parks, these captivating celestial phenomena will get Americans ...

Because Io is so close to its massive host planet, the moon is subjected to a tremendous gravitational pull as it orbits ...

Each planet has a unique personality with attributes like Jupiter's size, Mars' intensity, and Venus' romanticism. Swipe statuses suggest potential matches, making the solar system feel like a ...

Jupiter, the largest planet in our solar system, signifies growth, luck, and higher learning in astrology. Its placement in a natal chart points to areas of life laden with abundance and opportunity.

February 28 brings another planetary alignment, with seven planets visible. Mid-August features a stunning conjunction of Venus and Jupiter appearing remarkably close just before sunrise ...

Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...