Science and Exploration: Moon to Mars. Dr. Jim Garvin NASA Chief Scientist Exploration Conference Orlando, Florida Feb. 1, 2005
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1 Science and Exploration: Moon to Mars Dr. Jim Garvin NASA Chief Scientist Exploration Conference Orlando, Florida Feb. 1, 2005
2 Enabling Exploration!
3 Science supports Exploration Basic inventorying 0 th -order questions Space Science Discovery-oriented LRO Earth Science Prediction-oriented Boundary conditions Higher-order questions Comprehensive scientific investigations into the Origin, Evolution, and Destiny of the Earth, Moon, Mars, and Beyond Exploration
4 Exploration as a new context Apollo MER Oppty SCIENCE will inform and guide Exploration... 4
5 LRO A First Step in Exploration : 2008 Lunar Reconnaissance Orbiter
6 LRO Addresses... Scientific Linkages: Moon Volatiles In Prep for Mars Comets Early H2O Solar Wind C-type? Asteroids Internal volatiles The Moon Interplanetary Dust Particles Earth Giant Molecular Clouds 6
7 Tycho Cosmic Collisions... The risks of planetary impacts Meteor Zhamanshin Exploration of the MOON and Mars will catalyze new understanding of IMPACTS on Earth Popigai
8 Mars : a Final Frontier Using Science to get us there...
9 NASA s Mars Exploration Program Objectives Was the environment on Mars ever right for emergence of life? If so, did life emerge on Mars? If it did, is there life on Mars now?
10 Searching for Life on Mars: Are we ready?
11 Exploration asks the Question... Climate Geology Evolution or dramatic change? Processes and their chronology? Persistent liquid water? We ve arrived at questions we ask about Earth! Origin of life? Habitable environments? Hostile surface chemistry? Carbon chemistry
12 Mars: interacting systems from outside in... 12
13 MARS: Polar Science: Where Water and Climate interact... S. Polar dynamics N. Polar systems 13
14 Spirit at the Columbia Hills Two Different Water Stories... Implications Opportunity at Burns Cliff in Endurance Crater
15 Mars Science Highlights Opportunity Discovers Evidence of Rocks Deposited and Soaked in a Body of Water! Earth Analogue
16 Earth as a Testbed : Evaporites as potential habitats...sulfate salts Antarctic Dry Valley (Don Juan Pond): IKONOS COLD-BASED EVAPORITES Great Salt Desert, Iran: IKONOS DESERT EVAPORITES
17 Where to Look? Mars has a surface area equivalent to the land area of Earth. Where on Mars should we look for an answer? Look in areas with High Habitability Potential Areas that have several elements considered necessary for life Key Water where it might have been and, where it might be now Complex carbon chemistry Sources of disequilibrium trace gases Hydrothermal areas 17
18 DELTAS: Long-standing bodies of water required, whether Earth or Mars! Mars Polar sub-km crater Volga River Delta (Landsat 7) Holden Crater delta (MGS/MOC) 18
19 Exploring Preservation Potential: Ongoing robotic exploration identifies the possibilities...now to get there
20 Ice, Sediments, Melting...Habitat? Headscarp of Chasma Boreale 1000 m of layered ice, frozen sand dunes, and layered sedimentary rock above a cratered basement
21 Mars Exploration: Investigation Pathways Guiding Principles: Scientific discoveries yet to be made will alter current plans Technology development will affect the pace of the program Budget will always constrain the plan To remain resilient, all futures are defined in terms of a series of potential pathways not a deterministic queue of missions MRO? 21
22 Scientific Outcomes can be largely Unknown Humans on Site... Impact on outcomes? While all knowledge is valuable, NASA anticipates extraordinary scientific results from the Vision for Space Exploration 22
23 DISCOVERY Climate History Sample Selection Ancient Water Validate Paleo-Life Resources Extant Life? EXPLORATION ROBOTICS ROBOTICS ROBOTICS HUMANS ROBOTICS & HUMANS Reconnaissance Site Selection Sample Selection Return Sample Field Studies Deep Drilling Exploring Mars 23
24 Certain Asteroids offer high scientific discovery potential relevant to the search for life s origins... C-types etc. Targets for human exploration?? C-type offer unique science possibilities Ida and moon Diversity of Asteroids 24
25 Meteorite from Vesta (~ 550 km across [AZ size]) 25
26 TARGET for HUMAN EXPLORATION near Earth? (After Ostro) 1998 KY26: ~ 30m diameter C-type NEA 26
27 EXPLORATION is HAPPENING at NASA! Moon from Earth (SAR)! Spitzer: Astrophysics TITAN: Possibilities! Europa: a Next Step? MER on Mars 27 Samples: keep on giving!
28 From the Moon to Mars and Beyond, Scientifically
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