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The Unique Scientific Value of Returned Samples in Astrochemistry
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- 1 Intro
- 2 Organizers
- 3 Webinar Format
- 4 Today's Speaker
- 5 One of the best ways to understand an object is to establish its composition. An object's composition can provide information on for example
- 6 To study the original materials from which the Solar System was made, don't look to planets for help - they destroy the Raw Stuff from which they were made
- 7 Much of our current inventory of meteorites available for study comes from Antarctica Why collect from Antarctica given the obvious hazards and difficulties?
- 8 The real reasons we find a lot of meteorites in Antarctica
- 9 ANSMET and some (In)famous Antarctic meteorites
- 10 Unfortunately, collected samples of meteorites and cosmic dust particles are almost all orphans' - we don't know exactly where they come from
- 11 The Advantages of Sample Return Missions
- 12 Two Past Sample Return Missions - NASA's Stardust Comet Sample Return Mission JAXA's Hayabusa Asteroid Sample Return Mission
- 13 Stardust took advantage of Comet Wild 2's wild ride through the Solar System
- 14 STARDUST's Orbital Trajectory
- 15 The STARDUST Spacecraft
- 16 The Aerogel Collector Array (The Stardust catcher's mitt)
- 17 Particles can survive hypervelocity impacts into aerogel, but are largely destroyed if they hit something hard like metal
- 18 Material was collected as Stardust flow through the coma of 81P/Wild 2
- 19 the Utah Test and Training Range (UTTR)
- 20 The Capsule Landing Site January 15, 2006
- 21 Unequilibrated Materials
- 22 Protosolar Nebular Mixing
- 23 Organics are present and Varied
- 24 Mostly Protosolar, not Presolar
- 25 But Deuterium and 1SN Enrichments in the Organics are Not Uncommon
- 26 Stardust Top Hits List - Summary
- 27 HXA The Japanese Hayabusa ("Falcon") Asteroid Sample Return Mission
- 28 Itokawa is not a very large asteroid and appears to be a "rubble pile"
- 29 Putting Itokawa in Scale (bigger than the Space Station)
- 30 Itokawa appears to be a "Rubble Pile"- it has relatively few craters and lots of boulders
- 31 The sampling attempt on November 20, 2005 did not go perfectly
- 32 Reentry and Recovery of the Hayabusa SRC June 2010 - Right on target
- 33 The Victorious Cleanroom Crew after the Opening of the Sample Canister
- 34 Once we knew we had particles for analyses, JAXA began distributing them to Preliminary Examination Team (PET) members for multiple types of analysis
- 35 Examples of Hayabusa Particles
- 36 Summary of Hayabusa Results
- 37 Current Sample Return Missions: OSIRIS-REX and Hayabusa2
- 38 OUR TARGET ASTEROID - 101955 Bennu (provisional designation 1999 RQ36)
- 39 OSIRIS-REX INSTRUMENT PAYLOAD
- 40 TOUCH-AND-GO SAMPLE ACQUISITION SYSTEM (TAGSAM) and Sample Return Capsule Operation
- 41 Earth Gravity Assist - 21 Sept 2017
- 42 Getting to know Bennu
- 43 Crater candidates
- 44 Record Setting Orbit (x2)
- 45 Spectroscopy: Widespread Hydrated Minerals
- 46 Bennu is an Active Asteroid!
- 47 AN OSIRIS-REX FAST: MEASURING A PLANETARY MASS USING RADAR AND INFRARED ASTRONOMY
- 48 BENNU HAS MULTIPLE FUTURE OPPORTUNITIES FOR IMPACT WITH THE EARTH
- 49 Candidate Sample Sites
- 50 Checkpoint Rehearsal
- 51 Remember returned samples are a legacy that will be used by scientists for years to come
