A planet about the size of Neptune but situated 33 times closer to its parent star than Earth orbits the sun is losing its atmosphere, forming a fat, comet-like tail in the process.
Magnesium and iron measurements suggest the hourly meteor rate overhead on Mars must have been tens of thousands of shooting stars per hour for hours.
Many thunderstorms in Saturn's atmosphere could be driving the gas giant's vast polar cyclones, according to new simulations inspired by observations from NASA's Cassini spacecraft.
By tracking the phases of six exoplanets, astronomers have tracked their daily weather cycles for the first time.
No, this isn't humanity's attempt at laser-etching Saturn's cloudy atmosphere with interplanetary graffiti, this is the stunning view at the bottom of a brand new adaptive optics system intended to superboost the clarity of deep space.
Observations by NASA's Spitzer Space Telescope have revealed wild atmospheric changes on a well studied exoplanet -- changes that could be driven by extreme volcanic activity.
Scientists using NASA’s Mars-orbiting MAVEN spacecraft discovered a mysterious cloud of dust hundreds of miles above the planet’s surface -- and no explanation for how it got there.
Amateur astronomers gazing at Mars discovered gigantic plumes soaring more than 125 miles above the planet’s surface, a phenomenon that so far defies explanation.
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