The Oceans of Mars: 2/4: #HotelMars: Voyager 1 and the Once Upon a Time Oceans of Mars. Alexis Rodriguez, Senior Scientist at Planetary Science Institute. David Livingston, SpaceShow.com
The John Batchelor Show
John Batchelor
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🗓️ 16 July 2023
⏱️ 9 minutes
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Royal Observatory Greenwich 1811
The Oceans of Mars: 2/4: #HotelMars: Voyager 1 and the Once Upon a Time Oceans of Mars. Alexis Rodriguez, Senior Scientist at Planetary Science Institute. David Livingston, SpaceShow.com
https://www.linkedin.com/feed/update/urn:li:activity:7004333512493346817/
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| 0:00.0 | This is CBS I In The World. I'm John Batsworth. David Livingston, Dr. Space, of the space show |
| 0:12.4 | he is with me on Hotel Mars and we're actually talking about Mars for once. With Professor |
| 0:18.3 | Alexis Rodriguez of the Planetary Science Institute, he with his team have discovered |
| 0:25.0 | events that happened 3.4 billion years ago on the surface of Mars, Northern Hemisphere. |
| 0:31.2 | And they discovered these things because their results of the event, the strike of an asteroid, |
| 0:37.6 | is all around the landing zone of Viking 1 in 1976, which was unaware of all of these |
| 0:46.4 | events until it landed. And I'm going to start with David's question of the remarks that |
| 0:53.2 | the professors helped us understand so far about the reasoning of this event. David, you have |
| 0:59.0 | a question for the professor. Yes, professor, I found it interesting that you have an earth |
| 1:05.1 | analog to poll crater, the tickle loop, if I'm pronouncing it right, crater. Can you talk about that |
| 1:12.3 | and why you think that's an analog to poll crater? Yeah, absolutely. So basically the analogy |
| 1:21.7 | is essentially that the craters have similar dimensions. They generated similar megatonami |
| 1:31.8 | like based on the simulations. The megatonami is actually flooded in land areas to similar |
| 1:41.0 | extents. Now that's like the overall similarity that is actually very striking. Some people actually |
| 1:47.8 | ask me about the climatic effect of Mars that poll could have had. And that's actually a very, |
| 1:55.3 | very hard question to answer because you've got to remember that a lot of what we know of the |
| 2:02.0 | latest period climat of Mars is controversial. So to answer that question, we would have to |
| 2:10.6 | depart from assumptions that are white ranging today in today's hypothesis. So maybe if you had |
| 2:18.6 | a thick atmosphere, let's say, and a much warmer and water climate, then the impact could have |
| 2:26.6 | essentially like affected the global paleoclimatic evolution of the planet at that moment, |
| 2:36.2 | like very similar to the Earth's analog. Now, if the opposite was true, if the atmosphere was |
| 2:43.8 | very thin, then the impact on the paleoclimat would have thinned lower. You would have less dispersion |
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