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NASA Science pursues answers to the Big Questions defined by the scientific community about planetary science.
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Overview of how NASA Science contributes to the study of Planetary Science
Missions
NASA missions to Solar System bodies

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Planets Missions for 'operating' phase.

*Sort missions by clicking Launch Date, A-Z, or PHASE column headers.

Launch Date	A-Z	Phase
19971016 October 15, 1997	Cassini The Cassini Mission is in the midst of a detailed study of Saturn, its rings, its magnetosphere, its icy satellites, and its moon Titan. Cassini also delivered a probe...	Operating
20070928 September 27, 2007	Dawn The Dawn mission intends to orbit Vesta and Ceres, two of the largest asteroids in the solar system. According to current theories, the very different properties of Vesta and...	Operating
20050112 January 12, 2005	Deep Impact The Deep Impact mission was selected as a Discovery mission in 1999. The spacecraft was launched aboard a Delta II rocket on January 12, 2005 and left Earth’s orbit toward...	Operating
20050112 January 12, 2005	Deep Impact Epoxi Extrasolar Planet Observation and Deep Impact Extended Investigation EPOXI is a follow-on mission to Deep Impact. This mission is part of SMD's Discovery...	Operating
20030509 May 09, 2003	Hayabusa The Hayabusa (formerly Muses-C) mission is to collect a surface sample of material from the small asteroid and return the sample to Earth for analysis....	Operating
20030708 20:00:00 GMT-4 July 08, 2003	Mars Exploration Rover - Opportunity The Mars Exploration Rover Opportunity landed at on a flat plain known as Meridiani Planum on Mars in January 2004. It carries a sophisticated set of instruments that allow...	Operating
20030610 June 10, 2003	Mars Exploration Rover - Spirit Mars Exploration Rover Spirit landed in Gusev crater on Mars in January 2004. The rover carries a sophisticated set of instruments that allow it to search for evidence of...	Operating
20030603 June 02, 2003	Mars Express (ASPERA-3) Mars Express is exploring the atmosphere and surface of Mars from polar orbit. The mission's main objective is to search for sub-surface water from orbit and deploy a lander...	Operating
20010408 April 07, 2001	Mars Odyssey The 2001 Mars Odyssey is an orbiter carrying science experiments designed to make global observations of Mars to improve our understanding of the planet's climate and...	Operating
20050813 August 12, 2005	Mars Reconnaissance Orbiter (MRO) The Mars Reconnaissance Orbiter (MRO) will seek to find out about the history of water on Mars with its science instruments. They will zoom in for extreme close-up...	Operating
20040804 August 03, 2004	MESSENGER MErcury Surface, Space ENvironment, GEochemistry and Ranging (MESSENGER) is a scientific investigation of the planet Mercury, the least explored terrestrial planet. This...	Operating
20060120 January 19, 2006	New Horizons The New Horizons Pluto-Kuiper Belt Mission will help us understand worlds at the edge of our solar system, by making the first reconnaissance of Pluto and Charon. The mission...	Operating
20070805 August 04, 2007	Phoenix Phoenix seeks to verify the presence of the Martian Holy Grail: water and habitable conditions....	Operating
20040303 March 02, 2004	Rosetta The Rosetta Orbiter will study the origin of comets, the relationship between cometary and interstellar material and its implications with regard to the origin of the Solar...	Operating
	Stardust-NExT STARDUST-NExT - short for “New Exploration of Tempel-1” is a follow-on mission for STARDUST This mission is part of SMD's Discovery...	Operating

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