Searching Mars for signs of past environmental conditions able to support life.
The Juno spacecraft will, for the first time, see below Jupiter's dense clouds.
Voyager 1 and 2 took advantage of a rare planetary alignment to conduct a histor
Cassini has been unlocking the secrets of Saturn, its ringsand moons since 2004.
New Horizons is the first mission to explore Pluto and the Kuiper Belt.
Ulysses was the first mission to study the sun from both poles.
MESSENGER was the first spacecraft to orbit Mercury.
Dawn is the first mission to explore a dwarf planet.
Mariner 10 was the first spacecraft sent to study Mercury.
Pioneer 11 was the first mission to explore Saturn and the second spacecraft in
Venus Express was designed to study the atmosphere of Venus.
Heliophysics missions study the sun and its effect on the Earth and our solar system.
Voyager 1 and 2 took advantage of a rare planetary alignment to conduct a ...
Pioneer 10 was the first spacecraft to fly by Jupiter.
NASA's twin Mars Exploration Rovers transformed our understanding of Mars.
Lunar Prospector was designed to provide answers to long-standing questions about the Moon, its resources, its structure and its origins.
Galileo spacecraft logged many firsts during its 14-year mission to Jupiter.
Still in orbit around Mars, NASA's 2001 Mars Odyssey spacecraft has collected more than 130,000 images and continues to send information to Earth about Martian geology, climate, and mineralogy.
Earth science missions are designed to study our home world from above as a whole system and aid in our understanding how the planet is changing.
Goals: Explorer 1 was the first spacecraft successfully launched by the U.S.