Completed
OUR TARGET ASTEROID - 101955 Bennu (provisional designation 1999 RQ36)
Class Central Classrooms beta
YouTube videos curated by Class Central.
Classroom Contents
The Unique Scientific Value of Returned Samples in Astrochemistry
Automatically move to the next video in the Classroom when playback concludes
- 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
