Dawn's goal is to characterize the conditions and processes of the solar system's earliest epoch by investigating in detail two of the largest protoplanets remaining intact since their formations.
LRO - Lunar Reconnaissance Orbiter
The Lunar Reconnaissance Orbiter (LRO) launched in June 2009 with the objectives of finding safe lunar landing sites, locate potential resources, characterize the radiation environment, and demonstrate new technology.
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.
MARSIS is a radar sounder on the Mars Express orbiter that is probing the subsurface and studying the ionosphere.
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.
The goal of the Onboard Autonomous Science Investigation System (OASIS) project at NASA's Jet Propulsion Laboratory (JPL) is to evaluate, and autonomously act upon, science data gathered by in-situ spacecraft, such as planetary landers and rovers.
Solar Probe Plus
Solar Probe Plus will study the streams of charged particles the Sun hurls into space from a vantage point where the processes that produce the solar wind actually occur.
InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) is a proposed NASA Discovery Program mission that will place a single geophysical lander on Mars to study its deep interior.
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