Cancelled NASA space probes

cancelled joint NASA/ESA uncrewed space mission

proposed NASA spacecraft designed to explore the icy moons of Jupiter

United States space mission to collect samples from an asteroid

proposed spacecraft lander that would probe Titan

proposed and subsequently cancelled (unfunded) robotic rover to be sent to planet Mars

proposed space probe to explore Venus

unlaunched uncrewed space mission

proposed spacecraft concept by NASA for a lander for Jupiter's moon Europa

cancelled space probe

proposed Mars sample return mission

lunar rover

NASA crewed Venus mission concept

cancelled NASA spaceflight mission in the Mars Exploration Program

canceled orbiter mission concept to Europa

cancelled NASA Mars rover concept

proposed crewed Venus flyby

cancelled European space probe to the Jupiter system

Trans-Neptunian object exploration mission proposal

planned family of uncrewed NASA spacecraft

spacecraft mission concept by NASA to the outer planets and beyond

proposed set of robotic sensing stations on the Moon

NASA design reference mission

NASA space probe proposal to study the giant gas planet Neptune and it's moon Triton

cancelled NASA space exploration program

MoonRise was a robotic mission concept to the south pole of the Moon. It was proposed in 2010 and 2017 for NASA's New Frontiers program mission 3 and 4, respectively, but it was not selected. If funded and launched by another NASA opportunity, it would focus on the giant South Pole–Aitken basin (SPA basin) on the far side of the Moon between the Moon's South Pole and Aitken Crater, 16° south of the Moon's equator. This basin measures nearly in diameter and in depth. This region is the oldest and deepest observable impact basin on the Moon and provides a window into the deep crust of the Moon a

Martian astrobiology mission proposal

cancelled series of uncrewed NASA probes to the planet Mars

proposed spacecraft intended to study the interstellar medium

Concept lander mission to Venus

NASA project to design a rover for the planet Venus, controlled by a wind-powered mechanical computer

Comet Rendezvous Asteroid Flyby. Cancelled NASA mission plan