One out five NASAs Discoveryclass missions for Phase A studies A 63 minute descent to study chemical and isotopic composition of Venus atmosphere First US entry probe to target Venus atmosphere in ID: 528851
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DAVINCI: Deep Atmosphere Venus Investigation of Noble Gas, Chemistry, and Imaging
One out five NASA’s Discovery-class missions for Phase A studies.A 63 minute descent to study chemical and isotopic composition of Venus atmosphere.First U.S. entry probe to target Venus atmosphere in 45 years.
http://www.hou.usra.edu/meetings/lpsc2016/pdf/1560.pdfSlide2
Fundamental questions
National Research Council (NRC) Planetary SurveysBuilding new worlds Planetary habitatsWorkings of solar systemsSlide3
Building new worlds
solar system formation, interstellar matter Evolution of atmospheres, bombardments by large projectilespics-about-space.comSlide4
DAVINCI Objective 1
Atmosphere origin & evolutionStage 1-upper atmosphereThe origins and evolution of the Venus atmosphereThe influence of impact eventshttp://womeninastronomy.blogspot.com/Slide5
Planetary Habitats
http://www.universetoday.com/120982/what-is-the-habitable-zone/Ancient aqueous environmentEarly life evidenceSlide6
DAVINCI Objective 2-
Atmosphere composition & surface interactionStage 2-lower atmosphere (12km to surface in situ measurements)History of waterChemical process at lower atmospherehttp://womeninastronomy.blogspot.com/Slide7
Workings of solar systems
http://www.dailymail.co.uk/Interactions of chemical and physical processes that shaped the solar systemSlide8
DAVINCI Objective 3-
Surface propertiesStage 3-LandingTypical tessera terrainTectonic, volcanic and weathering historyhttp://womeninastronomy.blogspot.com/Slide9
Image Credit: NASA
Image Credit: NASAImage Credit: NASAPioneer: Limited ExplorationSlide10
Image credit: NASA
Image credit: NASADivergent Paths: Atmosphere DevelopmentSlide11
Image credit: NASA
Atmospheric Evolution of Venus Slide12
Image Credit: ESA Rovers
Image Credit: ESA RoversAtmospheric Surface Interaction: WaterSlide13
Image Credit: University of WIsconsin - Astronomy Department
Surface Properties: Volcanic ActivityImage Credit: University of WIsconsin - Astronomy Department Slide14
Image Credit: Case Western Reserve University
Earth’s Atmosphere: Habitable ConditionsSlide15
How will we do it?Slide16
63 minute descent
http://womeninastronomy.blogspot.com/Slide17
Quadruple Mass Spectrometer
Objective 1Atmosphere origin & evolutionImage Credit: NASASlide18
Tunable Laser Spectrometer
Objective 2-Atmosphere composition & surface interaction
Image Credit: NASASlide19
Descent Imager
Objective 3 Surface properties Image Credit: Russian Space AgencyImage Credit: NASASlide20
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