#Bestof2022: 2/2 #HotelMars: Planetary Defense, September 2022. Andy Rivkin @asrivkin, planetary astronomer on #TeamAsteroid, @JHUAPL. David Livingston @SpaceShow SpaceShow.com
The John Batchelor Show
John Batchelor
4.5 • 2.8K Ratings
🗓️ 4 November 2023
⏱️ 10 minutes
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Summary
https://www.nasa.gov/planetarydefense/dart
1811 Greenwich
Transcript
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| 0:28.0 | odds of 4 to 1 in 3 selections tease and see supply. and co-pilot of Hotel Mars and we're very pleased to have Andy Rivkin of the double asteroid |
| 0:46.8 | redirection test, the Dart mission from NASA now underway. |
| 0:50.8 | Dart is headed to rendezvous with Didamos, the asteroid, the binary asteroid, in the September of |
| 0:56.8 | 2022, and he's the lead investigator. However, he also studies asteroids as a day job and a night job all the time. |
| 1:05.0 | He has the joy of asteroids. |
| 1:07.0 | Asteroids with water ice, Asteroids maybe with liquid ice, |
| 1:11.0 | Asteroids in all flavors. |
| 1:12.0 | However, the larger story is why do we want to ram |
| 1:16.9 | the little buddy of a binary asteroid? What do we want to learn about this redirection? Is that real or is that Hollywood? And in my |
| 1:25.6 | understanding is that this is about near-Earth objects and planetary defense. It |
| 1:31.5 | sounds like a science fiction movie, but if I read the |
| 1:35.3 | statistics on the site and translate from meters to English feet, there are lots of |
| 1:42.3 | asteroids out there that are smaller than 140 meters that is 140 feet, 140 meters. |
| 1:49.3 | And we've only tracked about 40% of them. |
| 1:52.0 | Where are the others, Andy? And what are we going to do about them? |
... |
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