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NASA’s Planetary Science Division Director, Jim Green, talks to NASA Goddard’s Amy Simon, who studies the outer planets Uranus and Neptune.

Star-shaped and swallowtail-shaped tiny, dark bumps in fine-layered bright bedrock of a Martian ridge are drawing close inspection by NASA's Curiosity Mars rover.

NASA’s Planetary Science Division Director, Jim Green, talks to NASA Goddard’s Amy Simon, who studies the outer planets Uranus and Neptune.

A study provides new insight into the Moon's excessive equatorial bulge, a feature that solidified in place over four billion years ago as the Moon gradually distanced itself from the Earth.

New research published in Nature Astronomy seeks to understand how surface clay was formed on Mars despite its cold climate.

The seven Earth-size planets of TRAPPIST-1 are all mostly made of rock, with some having the potential to hold more water than Earth, according to a new study.

Living near a star is risky business, and positioning a spacecraft near the Sun is a very good way to observe rapidly changing solar activity and deliver early warning of possibly harmful space weather. ESA is now looking at doing just that. 

A new self-portrait of NASA's Curiosity Mars rover shows the vehicle on Vera Rubin Ridge, which it has been investigating for the past several months.

A University of Oklahoma astrophysics team has discovered for the first time a population of planets beyond the Milky Way galaxy.

Does all life depend on water? Titan may be home to methane-based life forms.