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kchangnyt's profile
Kenneth Chang
Kenneth Chang
Kenneth Chang
@kchangnyt

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Kenneth Chang

@kchangnyt

Science reporter at the New York Times. Pluto, dinosaurs, NASA, viral math & more...

New York, NY
nytimes.com/by/kenneth-cha…
Joined April 2014

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    1. Michele Bannister‏ @astrokiwi 21 Sep 2015
      Replying to @kchangnyt

      @kchangnyt @DrFunkySpoon http://arxiv.org/abs/1507.06300  ?

      2 replies 0 retweets 0 likes
    2. David Grinspoon‏Verified account @DrFunkySpoon 21 Sep 2015
      Replying to @astrokiwi

      @astrokiwi @kchangnyt Here's one stab at it that I made: http://funkyscience.net/wp-content/uploads/2013/07/PlanetDef_Aug.pdf …

      1 reply 0 retweets 0 likes
    3. Kenneth Chang‏ @kchangnyt 21 Sep 2015
      Replying to @DrFunkySpoon

      @DrFunkySpoon @astrokiwi No way to prove roundness of exoplanets, right?

      1 reply 0 retweets 0 likes
    4. David Grinspoon‏Verified account @DrFunkySpoon 21 Sep 2015
      Replying to @kchangnyt

      @kchangnyt @astrokiwi In general not observationally. But know mass & density. Above a certain size, physics kicks in.

      1 reply 0 retweets 0 likes
    5. Kenneth Chang‏ @kchangnyt 21 Sep 2015
      Replying to @DrFunkySpoon

      @DrFunkySpoon @astrokiwi Then it’s a fuzzy, arbitrary mass cutoff. Something slightly smaller still roundish (e.g. Vesta).

      1 reply 0 retweets 0 likes
    6. Kenneth Chang‏ @kchangnyt 21 Sep 2015
      Replying to @kchangnyt

      @DrFunkySpoon @astrokiwi Composition also influences whether it can become round.

      1 reply 0 retweets 0 likes
    7. David Grinspoon‏Verified account @DrFunkySpoon 21 Sep 2015
      Replying to @kchangnyt

      @kchangnyt @astrokiwi True but we often have constraints on density. What we will never know is small body population in vicinity of exos.

      1 reply 0 retweets 0 likes
    8. Kenneth Chang‏ @kchangnyt 21 Sep 2015
      Replying to @DrFunkySpoon

      @DrFunkySpoon @astrokiwi Any exoplanets that might not clear neighborhood? Is this semantics? Can’t detect exo-Pluto or eco-Ceres, right?

      2 replies 0 retweets 0 likes
    9. David Grinspoon‏Verified account @DrFunkySpoon 21 Sep 2015
      Replying to @kchangnyt

      @kchangnyt @astrokiwi I don't think we can know w/out knowing what's in neighborhood. Earth was "dwarf" until after late heavy bombardment..

      1 reply 0 retweets 0 likes
    10. Kenneth Chang‏ @kchangnyt 21 Sep 2015
      Replying to @DrFunkySpoon

      @DrFunkySpoon @astrokiwi It’s arbitrary one way or the other. Neither is stupid arbitrary.

      3 replies 0 retweets 0 likes
      Kenneth Chang‏ @kchangnyt 21 Sep 2015

      @DrFunkySpoon @astrokiwi Carving out a historical exemption for Pluto would be example of stupid arbitrary.

      1:36 PM - 21 Sep 2015
      0 replies 0 retweets 0 likes

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