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.
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.
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.
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.
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.
The orbiter has performed 56 flybys of Jupiter and documented close encounters with three of the gas giant’s four largest…
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.
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: