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Exploration

Comparing Cliffs On Earth – And On A Comet

By Keith Cowing

NASA Watch

November 29, 2021

(L) El Capitan, Yosemite, Earth ~1 km tall (R) ~1 km tall cliff on comet Churyumov-Gerasimenko
Image Credit: ESA, Rosetta spacecraft, NAVCAM; Additional Processing: Stuart Atkinson https://t.co/HchHdfbRVo pic.twitter.com/bKrFth8scB

— NASA Watch (@NASAWatch) November 29, 2021

Keith Cowing

NASA Watch founder, Explorers Club Fellow, ex-NASA, Away Teams, Journalist, Space & Astrobiology, Lapsed climber.

3 responses to “Comparing Cliffs On Earth – And On A Comet”

Vladislaw says:

November 30, 2021 at 3:54 am

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Keith did you catch this? As this sure seems to be under reported. Musk wrote an email around thanksgiving saying it is do or die on the raptor engine production.

Elon Musk says SpaceX could face ‘genuine risk of bankruptcy’ from Starship engine production

https://spaceexplored.com/2…
- space1999 says:
  
  November 30, 2021 at 5:26 pm
  
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  I saw this in my news feed yesterday… hadn’t heard of Space Explored, so I was a bit skeptical, but CNBC and others are now running the same story and have apparently independently verified it. Good scoop for Space Explored I guess…
- Jack says:
  
  November 30, 2021 at 8:14 pm
  
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  That was an interesting read.
  It seems to me that some of it may be overstated though. I seriously doubt they are are going to be able to achieve a Starship flight rate of once every two weeks next year just because of time it takes to get regulatory approval.