72: GREG BRENNECKA: IMPACT—HOW ROCKS FROM SPACE LED TO LIFE, CULTURE, AND DONKEY KONG Impact: How Rocks from Space Led to Life, Culture, and Donkey Kong Cosmochemist Greg Brennecka discusses the history of meteoritics, beginning with the documentation of a m
The John Batchelor Show
John Batchelor
4.5 • 2.8K Ratings
🗓️ 10 November 2025
⏱️ 13 minutes
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Summary
Impact: How Rocks from Space Led to Life, Culture, and Donkey Kong
- Cosmochemist Greg Brennecka discusses the history of meteoritics, beginning with the documentation of a meteor shower in Normandy, France, in 1803 by Jean Baptiste Biot, which validated the celestial origin of falling rocks and proved they fell according to mechanics. In ancient times—such as 4,000 BCE in Iran—iron meteorites were highly valued because humanity could not manufacture native iron at that point, and Mesopotamians interpreted meteorites as significant historical augurs. Despite this early recognition, influential Greek thinkers like Aristotle denied their heavenly origin for 2,000 years, believing the heavens were perfect, a denial that persisted until the thorough documentation of falls in the early 19th century.
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| 0:34.5 | This is CBS Eye on the World. |
| 0:39.3 | Here's John Bacheloratchelor. Asteroids, meteors, comets, the material we swim through on the planet Earth and our solar system. |
| 0:49.3 | I welcome Greg Brenecke. |
| 0:51.3 | Greg is the author of the new book, Impact, How Rocks from Space |
| 0:56.2 | led to life culture in Donkey Kong. He is a cosmochemist and a staff scientist at the Lawrence |
| 1:03.8 | Livermore National Laboratory in California. Right now, however, he's going to travel with me |
| 1:10.3 | to Normandy, France. The year is 1803. |
| 1:13.9 | The same year Thomas Jefferson acquired the Louisiana purchase, and we're going to witness the |
| 1:20.2 | documentation by a young French scientist named Jean-Baptiste B.O. of rocks that fell from heaven, because until this |
| 1:31.3 | moment, there was doubt where asteroids and meteors and comets came from. Greg, a very good evening |
| 1:39.6 | to you. Congratulations. What was B.O.'s mission when he traveled to Normandy and how did he fulfill |
| 1:45.5 | the mission so that we can date your work in meteors from that moment? Good evening to you. |
| 1:51.7 | Yes, good evening. Thanks a lot for having me. Beaux's mission was actually quite simple. |
| 1:56.9 | It was figure out what happened. And there was a you know, a ton of witnesses for this event. |
| 2:02.3 | It was a big meteor shower with a lot of stones that were recovered. |
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