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| rdfs:comment | - Mars Atmosphere and Volatile EvolutioN Mission (MAVEN) is a space probe developed by NASA designed to study the Martian atmosphere while orbiting Mars. Mission goals include determining how the planet's atmosphere and water, presumed to have once been substantial, were lost over time. On September 22, 2014, MAVEN reached Mars and was inserted into an areocentric elliptic orbit km (mi) by km (mi) above the planet's surface. The principal investigator for the spacecraft is Bruce Jakosky of the Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder.
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| interplanetary | |
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| Mission Duration | - 1
- 1.893456E8
- Science phase extended through September 2016.
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| Name | - Mars Atmosphere and Volatile EvolutioN
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| Image caption | - Artist's rendering of the MAVEN spacecraft bus
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| Mission Type | - Mars atmospheric research
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| abstract | - Mars Atmosphere and Volatile EvolutioN Mission (MAVEN) is a space probe developed by NASA designed to study the Martian atmosphere while orbiting Mars. Mission goals include determining how the planet's atmosphere and water, presumed to have once been substantial, were lost over time. MAVEN was successfully launched aboard an Atlas V launch vehicle at the beginning of the first launch window on November 18, 2013. Following the first engine burn of the Centaur second stage, the vehicle coasted in low Earth orbit for 27 minutes before a second Centaur burn of five minutes to insert it into a heliocentric Mars transit orbit. On September 22, 2014, MAVEN reached Mars and was inserted into an areocentric elliptic orbit km (mi) by km (mi) above the planet's surface. The principal investigator for the spacecraft is Bruce Jakosky of the Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder. On 5 November 2015, NASA announced that data from MAVEN shows that the erosion of Mars’ atmosphere increases significantly during solar storms. That loss of atmosphere to space likely played a key role in Mars' gradual shift from its carbon dioxide-dominated atmosphere - which had kept Mars relatively warm and allowed the planet to support liquid surface water - to the cold, arid planet we see today. This shift took place between about 4.2 to 3.7 billion years ago.
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