Advancing Knowledge of Other Worlds
For decades, NASA’s planetary science program has advanced scientific understanding of our solar system in extraordinary ways, pushing the limits of spacecraft and robotic engineering design and operation.
NASA spacecraft have visited every planet and a variety of small bodies, and current and upcoming missions will bring back samples from exciting destinations, allowing detailed study and analysis back on Earth.
Using recommendations from the National Academies' Planetary Science and Astrobiology Decadal Survey 2023-2032 as our guide, NASA planetary science missions and research inform us about our solar system's origin and evolution, which will enable the expansion of humanity beyond Earth.
Planetary Science Happenings
Plan Now to Join International Observe the Moon Night
Registration is now open for individuals or groups to participate virtually or in-person for the annual International Observe the Moon Night, which will be held this year on Saturday, Sept. 14.
How Do You Deliver a 7,000-Pound Spacecraft? (video)
How was NASA’s Europa Clipper spacecraft packed and shipped from the agency’s Jet Propulsion Laboratory in Southern California to Kennedy Space Center in Florida? The mission’s lead engineer Kobie Boykins explains how the team made sure the 7,000-pound spacecraft would be safe while it traveled.
NASA’s Perseverance Fords an Ancient River to Reach Science Target
After detouring through a dune field to avoid wheel-rattling boulders, NASA’s Perseverance Mars rover reached its latest area of scientific interest. The route change shortened the estimated drive time by several weeks and gave the science team an opportunity to find exciting geologic features in an ancient river channel.
15 Years Ago: Lunar Reconnaissance Orbiter Begins Moon Mapping Mission
The primary mission of the Lunar Reconnaissance Orbiter (LRO) was to image the entire Moon’s surface to create a 3-D map to aid in the planning of future robotic and crewed missions, and to map the polar regions and search for the presence of water ice.
Europa Clipper
NASA’s Europa Clipper mission, slated to launch in October 2024, will investigate Jupiter’s icy moon Europa, which — with its subsurface ocean — is one of the most promising places in our solar system to find environments capable of supporting life.
Learn MorePlanetary Science Missions
NASA’s robotic explorers gather data to help scientists understand how the planets formed, what triggered different evolutionary paths among planets, what processes have occurred and are active, and how Earth among the planets became habitable.
In searching for evidence of life beyond Earth, scientists use these data to map zones of habitability, studying the chemistry of unfamiliar worlds, and unveiling the processes that lead to conditions necessary for life. With this knowledge, NASA is enabling safe and effective human missions to destinations beyond low Earth orbit.
NASA missions continue to explore from the innermost planet, Mercury, to the outer reaches of the solar system, where Pluto orbits among many Kuiper Belt Objects. We have orbited and traversed the surface of Mars, finding evidence of liquid water and ancient habitable environments.
Closer to home, the Planetary Science Division uses Earth-orbiting telescopes and ground-based sensors in coordination with other organizations, including the National Science Foundation and the U.S. Air Force. These telescopes and sensors are used to survey space to detect, track, catalog, and characterize near-Earth objects (NEOs), which may pose hazards to Earth or provide destinations and resources for future exploration.
Our Solar System
Join NASA's planetary science team as we explore our planetary neighborhood: The Sun, planets, moons, and millions of asteroids, and comets.
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More NASA Planetary Science News
Perseverance Finds Popcorn on Planet Mars
Sols 4216-4218: Another ‘Mammoth’ Plan!
NASA to Discuss Outcome of 5th Biennial Asteroid Threat Exercise
NASA’s LRO Spots China’s Chang’e 6 Spacecraft on Lunar Far Side