Caleb Scharf

@caleb_scharf

Director of Astrobiology at Columbia University. Blog at Sci Am (). Author of The Zoomable Universe, The Copernicus Complex, Gravity's Engines...

New York
Vrijeme pridruživanja: studeni 2010.

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  1. Prikvačeni tweet
    21. lis 2018.

    File under "Teleportation Accidents of the 13th Century"

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  2. prije 14 sati

    What? Wait! No! Aaaargh! Japan Races to Build New Coal-Burning Power Plants, Despite the Climate Risks

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  3. 2. velj

    I dove in further on the whole 'humans on Mars' thing here:

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  4. proslijedio/la je Tweet
    1. velj

    Thanks to , here are 3000+ / DR1 images, in easy-accessible PNG format! PCAM: TCAM: Happy image mining!

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  5. proslijedio/la je Tweet
    1. velj

    GlobalXplorer° will strive to discover and protect our shared human story. Using satellite imagery, we can fight the loss of our cultural heritage.

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  6. proslijedio/la je Tweet
    31. sij

    I've lived in continental Europe for 23 of the last 27 years & know from personal experience how vital a role the EU has played in bringing the continent together after the Second World War & the Cold War. Today is one of the saddest of my life. Once European, always European.

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  7. 31. sij

    Goodbye Europe, it was nice while it lasted, rough with the smooth, and I wish the UK wasn’t doing this...

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  8. 31. sij

    Just another Friday, in which: Brexit, coronavirus, impeachment. Good grief...

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  9. 31. sij
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  10. proslijedio/la je Tweet
    30. sij

    My kind of aliens are the ones in the movies "Alien" and "The Thing". That is, well DESIGNED for survival and replication in any environment. 😬

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  11. proslijedio/la je Tweet
    31. sij
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  12. proslijedio/la je Tweet
    30. sij

    New paper by me and up on the arxiv today! In this one we measure the occultation depth and phase curve of the ultra-hot Jupiter WASP-100b using data from . And for the first time from a TESS phase curve, we find strong evidence for a windy atmosphere!

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  13. 30. sij
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  14. proslijedio/la je Tweet
    29. sij

    Wow. The movie version of DKIST's observations is even more impressive. Look at this!

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  15. proslijedio/la je Tweet
    27. sij

    "Because of the nature of our anatomy and gait it appears that on Mars we might weigh less but we would only be able to comfortably walk at about half our normal pace"

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  16. proslijedio/la je Tweet
    27. sij

    "What if terraforming simply makes Mars into a maelstrom-ridden hell?"

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  17. 27. sij

    "What if terraforming simply makes Mars into a maelstrom-ridden hell?"

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  18. 27. sij

    "Because of the nature of our anatomy and gait it appears that on Mars we might weigh less but we would only be able to comfortably walk at about half our normal pace"

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  19. 27. sij
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  20. proslijedio/la je Tweet
    26. sij

    perspective by on challenge of radiation for Martian settlers, re — but our recent paper on radiation inducing suggests that ferrostatins could enable martian settlement.

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  21. proslijedio/la je Tweet
    24. sij

    Here is my blog writeup of the 'Early Instability' model:

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