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Planetary Missions Program Office

Unlocking the Mysteries of the Solar System

Planetary Missions Programs

NASA is helping humanity answer profound questions about the nature of the solar system and our place in it. How did the solar system form and evolve? What are the hazards to Earth? Is there life out there? These are the questions we seek to answer, as we work to expand the frontiers of knowledge and opportunity in space.

This artist's-concept illustration depicts the spacecraft of NASA's Psyche mission near the mission's target, the metal asteroid Psyche.

Discovery Program

Established in 1992, this program includes a series of small planetary missions, launching every 36 months, selected and funded by NASA through open, peer-reviewed competition.

Illustration of NASA’s Dragonfly rotorcraft-lander approaching a site on Saturn’s exotic moon, Titan.

New Frontiers Program

Established in 2003, this program is a series of mid-size planetary missions, launching every 60 months. New Frontiers missions take on high-priority goals established by the planetary science community.

This artist's rendering shows NASA's Europa mission spacecraft

Solar System Exploration Program

From small, focused investigations to large, strategic missions of national importance, this program includes our "flagship" missions to answer the most compelling and challenging questions about our solar system.

The Moon, with Earth's shadow draping across it during a lunar eclipse, is pictured from the International Space Station.

Lunar Instruments and Payloads

In preparation for sending humans to Mars for the first time, NASA’s Artemis program will send astronauts back to the Moon by 2024.  Twelve new science and technology payloads have been selected as part of this program that will help us study the lunar surface.

Latest Planetary Missions Programs News

Stay up-to-date with the latest news from NASA's Planetary Missions Programs.

NASA’s Juno Gives Aerial Views of Mountain, Lava Lake on Io
6 min read

Imagery from the solar-powered spacecraft provides close-ups of intriguing features on the hellish Jovian moon. Scientists on NASA’s Juno mission…

NASA’s Dragonfly Rotorcraft Mission to Saturn’s Moon Titan Confirmed
3 min read

NASA has confirmed its Dragonfly rotorcraft mission to Saturn’s organic-rich moon Titan. The decision allows the mission to progress to…

Media Get Close-Up of NASA’s Jupiter-Bound Europa Clipper
4 min read

Excitement is mounting as the largest spacecraft NASA has ever built for a planetary mission gets readied for an October…

NASA’s OSIRIS-REx Earns Neil Armstrong Space Flight Achievement Award
3 min read

NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security – Regolith Explorer) team received the American Astronomical Society’s Neil Armstrong…

NASA’s Europa Clipper Survives and Thrives in ‘Outer Space’ on Earth
5 min read

A gantlet of tests prepared the spacecraft for its challenging trip to the Jupiter system, where it will explore the…

Sending “Water” to Europa
1 min read

This image from March 8, 2024, shows waveforms of the word “water” in 103 languages etched onto a triangular metal…

Image Article

How did our solar system form and evolve? What are the hazards? Is there life beyond Earth? NASA is exploring our solar system and beyond to answer these age-old questions. We’re launching spacecraft to asteroids, moons and planets beyond Earth. We’re using science to unlock their secrets. And we’re sharing what we learn, freely and openly, for the good of life on Earth. NASA’s Planetary Missions Program brings together three series of robotic exploration missions — Discovery, New Frontiers and Solar System Exploration. The program is part of the agency’s Science Mission Directorate. Find us on Facebook at NASA Planetary Missions Program.

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Illustration of all the planets with the moonscape in the foreground.
Illustration of all the planets with the moonscape in the foreground.

Planetary Missions Interactive

Right now, NASA spacecraft are exploring the furthest reaches of our solar system to answer age-old questions about life, the universe, and Earth. Join the mission! Try this interactive experience in your browser to learn more:

Learn More about Planetary Missions Interactive
Planetary Missions Interactive graphic.
Planetary Missions Interactive graphic.