The Cassini-Huygens spacecraft explored the ringed planet, its mysterious moons, the stunning rings and its complex magnetic environment.
NASA's Europa mission will conduct detailed reconnaissance of Jupiter's moon Europa to investigate whether the icy moon could harbor conditions suitable for life.
InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) is a NASA Discovery Program mission that will place a single geophysical lander on Mars to study its deep interior.
In its extended mission, Mars Odyssey continues to map chemical elements and minerals on the surface of Mars and to monitor changes at the surface for another Mars year.
MER - Mars Exploration Rovers
NASA's twin robot geologists, the Mars Exploration Rovers, launched toward Mars on June 10 and July 7, 2003, in search of answers about the history of water on Mars.
MRO - Mars Reconnaissance Orbiter
NASA's Mars Reconnaissance Orbiter (MRO) launched in 2005 and is on a search for evidence that water persisted on the surface of Mars for a long period of time.
MSL - Mars Science Laboratory
The Curiosity rover landed at Gale Crater on August 5, 2012. It is designed to search for and assess past or present habitable environments, i.e., those capable of supporting microbial life.
Habitability of Hydrocarbon Worlds: Titan and Beyond
NASA Astrobiology Institute
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