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The Asteroid Hunter: A Scientist’s Journey to the Dawn of our Solar System Hardcover – March 19, 2024 by Dante Lauretta (Author) Title: Bennu's Unexpected Challenges Author: Dante Lauretta

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Manage episode 504878769 series 96788
Content provided by Audioboom and John Batchelor. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Audioboom and John Batchelor or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.
The Asteroid Hunter: A Scientist’s Journey to the Dawn of our Solar System Hardcover – March 19, 2024 by Dante Lauretta (Author)
Title: Bennu's Unexpected Challenges Author: Dante Lauretta
After a successful launch in summer 2016, the OSIRIS-REx spacecraft approached its target, Bennu. Pre-arrival telescopic data from the Arecibo planetary radar system and the Spitzer Space Telescope suggested Bennu's surface would be "beach-like" with particles smaller than an inch. However, upon arrival, the team discovered a rough, rugged, and boulder-strewn surface, like a "great big gravel pile," making it difficult to find a safe, flat landing site with small particles. Bennu also exhibited unexpected "popcorn" activity, continuously ejecting particles due to its microgravity. Despite carefully selecting the Nightingale landing site, the Touch-And-Go Sample Acquisition Mechanism (TAGSAM) unexpectedly plunged into the fluid-like surface, overfilling and causing the collected sample to leak.
1954
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50751 episodes

Artwork
iconShare
 
Manage episode 504878769 series 96788
Content provided by Audioboom and John Batchelor. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Audioboom and John Batchelor or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://podcastplayer.com/legal.
The Asteroid Hunter: A Scientist’s Journey to the Dawn of our Solar System Hardcover – March 19, 2024 by Dante Lauretta (Author)
Title: Bennu's Unexpected Challenges Author: Dante Lauretta
After a successful launch in summer 2016, the OSIRIS-REx spacecraft approached its target, Bennu. Pre-arrival telescopic data from the Arecibo planetary radar system and the Spitzer Space Telescope suggested Bennu's surface would be "beach-like" with particles smaller than an inch. However, upon arrival, the team discovered a rough, rugged, and boulder-strewn surface, like a "great big gravel pile," making it difficult to find a safe, flat landing site with small particles. Bennu also exhibited unexpected "popcorn" activity, continuously ejecting particles due to its microgravity. Despite carefully selecting the Nightingale landing site, the Touch-And-Go Sample Acquisition Mechanism (TAGSAM) unexpectedly plunged into the fluid-like surface, overfilling and causing the collected sample to leak.
1954
  continue reading

50751 episodes

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