David Spergel

@DavidSpergel

Astrophysicist at Princeton University

Princeton NJ
astro.princeton.edu/~dns
Joined January 2014
25 Photos and videos Photos and videos

Tweets

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  1. Jan 25

    Science doesn't admit alternative facts. CO2 absorbs IR light. Add more, the world gets hotter, oceans acidify, coastal cities vanish

    3 replies 25 retweets 39 likes
  2. Jan 24

    Thank you all for your support. We ask that you call your member of congress & demand the censorship be lifted.

    316 replies 12,966 retweets 17,367 likes
  3. Jan 24

    Congratulations to for the Exceptional Public Service Medal, one of the highest awards to non-employees.

    10 retweets 24 likes
  4. Jan 18

    CCA is pleased to join the "Big Apple" community of NYU, Columbia, CUNY, and Amer. Mus. Of Nat. History. Next "Big Apple" Coll: Jan 27 3 PM

    1 like
  5. Jan 18

    CCA will host the "Big Apple Colloquium" on Friday, Jan 27 3 PM: Hiranya Peiris on "Fundamental Physics From the CMB" 160 5th Ave

    1 retweet 2 likes
  6. Jan 3

    NASA has announced that its next SMEX mission will be IXPE studying black holes and neutron stars with X-ray pol..

    14 retweets 20 likes
  7. 28 Dec 2016

    China has announced its plans for space exploration: humans to the moon by 2030, sample return in the 2020s.

    1 retweet 5 likes
  8. 28 Dec 2016

    May LIGO hear gravitational waves from a neutron star-black hole inspiral!

    3 retweets 8 likes
  9. 27 Dec 2016

    Sid Drell died at the wrong time and I tell you why, chapter and verse.

    1 reply 14 retweets 11 likes
  10. 26 Dec 2016

    Sad to lose Vera Rubin, one of the discoverers of dark matter. A terrific person and a great scientist.

    2 replies 13 retweets 25 likes
  11. 10 Dec 2016

    As the head of the Astro group at Imperial, I need to institute policies like this, if we want keep up with Harvard (in 1964).

    This is *just great* - Harvard memo to staff re. coffee breaks - no more "social office hopping" or else !! (I saw this on door at Peyton.)
    1 reply 6 retweets 16 likes
  12. 9 Dec 2016

    Semyeong had made a cool visualization of the comoving stars in our new paper:

    2 replies 1 retweet 6 likes
  13. 4 Dec 2016

    Americans! Prepare for the upcoming total eclipse (and the coming darkness)

    2 likes
  14. 3 Dec 2016

    Strong magnetic fields change the structure of the vacuum. Observations confirm QED predictions!

    19 retweets 23 likes
  15. 11 Nov 2016

    Studying structure of universe and exoplanets w one device! Jeremy Kasdin of with

    scientists help develop instrument that allows astronomers to observe planets orbiting distant stars:
    2 retweets 3 likes
  16. 8 Nov 2016

    Any alumni at Oxford? will lecture on "Our Simple But Strange Universe" Nov. 10

    1 retweet
  17. 17 Oct 2016

    Anthony Brown tells us the GAIA do's and donts. Amazing data set

    1 retweet 4 likes
  18. 17 Oct 2016

    David Hogg opening our first conference at the CCA: GAIA Sprint!

    1 reply 5 likes
  19. 15 Oct 2016

    The Kigali agreement is great news for the planet. HFCs account for about 8% of global warming. Ban will reduce global warming by about 0.3C

    3 retweets 6 likes

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