NASA (United States):
- Voyager 1 and 2 - Interstellar probes launched to study the outer planets and now exploring interstellar space.
- Pioneer 10 and 11 - Early spacecraft that conducted flybys of Jupiter and Saturn.
- New Horizons - Explored Pluto and the Kuiper Belt.
- Cassini-Huygens - Studied Saturn and its moons, including the Huygens probe landing on Titan.
- Curiosity Rover (Mars Science Laboratory) - Currently exploring the surface of Mars.
- Mars Rovers: Spirit, Opportunity, and Perseverance - Spirit and Opportunity explored Mars' surface, while Perseverance continues the mission.
- Viking 1 and 2 - Landed on Mars and conducted experiments to search for signs of life.
- Mariner Series - Various missions to explore Venus, Mars, and Mercury.
ESA (European Space Agency):
- Rosetta - Studied comet 67P/Churyumov–Gerasimenko and deployed the Philae lander.
- Mars Express - Orbiter mission to study Mars.
- Gaia - Mapping the Milky Way galaxy.
- ExoMars Trace Gas Orbiter (TGO) - Searching for signs of past life on Mars.
Russia/Soviet Union:
- Luna Series - Various missions to study the Moon.
- Venera Series - Probes sent to study Venus, including the first successful landings on another planet's surface.
- Mars Series - Various missions to explore Mars, including Mars 3, the first successful landing on Mars.
- Zond Series - Unmanned spacecraft used for circumlunar flights and planetary exploration.
JAXA (Japan Aerospace Exploration Agency):
- Hayabusa and Hayabusa2 - Studied asteroids Itokawa and Ryugu, respectively, and returned samples to Earth.
- Akatsuki - Orbiter mission studying the atmosphere of Venus.
- SELENE (Kaguya) - Orbiter mission to study the Moon.
CNSA (China National Space Administration):
- Chang'e Series - Lunar exploration missions, including landers and rovers.
- Tianwen-1 - Orbiter, lander, and rover mission to Mars.
- Yutu (Jade Rabbit) - Lunar rover deployed by the Chang'e missions.
- Tiangong Series - Space station modules and space laboratory missions.
