With an equatorial diameter of 7926 miles (12,760 kilometers), our planet Earth is the biggest of the terrestrial planets and ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...

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 ...

New Evidence Suggests Water Was Present in Liquid Form ...

NASA researchers have identified geological structures on Mars that are unlike anything found on Earth. From spider-like ...

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

Vandenberg Space Force Base, in coordination with NASA, is set to provide a comprehensive mission overview for the eagerly ...

NASA’s Jet Propulsion Laboratory described the complicated maneuver that will get the Trailblazer in a position to reach ...

NASA's Curiosity rover photographed remnants of rippling waves in an ancient Martian lakebed, proving that the Red Planet had ...

NASA’s SPHEREx to survey Milky Way for water ice, carbon compounds Mission to study molecular clouds where planets and stars form SPHEREx data will aid future studies of planetary evolution ...

NASA's Perseverance collects the “Silver Mountain” sample in Jezero, revealing geological secrets and possible traces of ...

Mars, our neighboring red planet, possesses some of the most dazzling and extreme geological features within our solar system ...