An asteroid that could level a city now has a 3.1-percent chance of striking Earth in 2032, according to NASA data released ...

The chances of an asteroid striking Earth within the next decade has more than doubled in a matter of weeks, according to ...

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.

NASA scientists have detected a star and trailing exoplanet that may be sailing through the Milky Way with unprecedented ...

Last year, astronomers discovered an unusual Earth-size exoplanet they believe has a hemisphere of molten lava, with its ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar system was the only planetary system known to humans. We had no proof other ...