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Mystery of Cosmic Expansion Deepens

We know the universe is expanding, but how fast? The more scientists explore this question, the more apparent it is that we still have a lot to learn about our universe.  

Credits

Produced by the Space Telescope Science Institute’s Office of Public Outreach in collaboration with NASA’s Universe of Learning partners: Caltech/IPAC, NASA Jet Propulsion Laboratory, Smithsonian Astrophysical Observatory, and Sonoma State University.



  • Hubble Space Telescope images of interacting galaxies: NASA, ESA, the Hubble Heritage Team (STScI, AURA), A. Evans  (University of Virginia, Charlottesville/NRAO/Stony Brook University)

  • Hubble Space Telescope images of interacting galaxies: NASA, ESA, the Hubble Heritage Team (STScI, AURA), A. Evans  (University of Virginia, Charlottesville/NRAO/Stony Brook University)

  • Animation, fly through deep field image: NASA, STscI; F. Summers, Z. Levay, L. Frattare, B. Mobasher, A. Koekemoer

  • Animation, fly through galaxies: NASA/Dana Berry

  • Cepheid variable RS Puppis pulse: NASA, STScI/H. Bond

  • Image of Cosmic Microwave Background: ESA/Planck Collaboration

  • Animation of Planck mapping the sky: ESA

  • Illustration of Planck telescope: ESA

  • Image of Hubble Space Telescope: NASA

  • Hubble Space Telescope image of NGC 3368: NASA, ESA, and the LEGUS team

  • Graphic comparing measurement results: STScI/L. Hustak

  • Animation, zoom out from Andromeda galaxy: NASA, ESA, STScI/AURA, DSS



Written by Leah Ramsay
Designed by Leah Hustak
Editorial and design input from Timothy Rhue II
Subject-matter expertise provided by Dr. Adam Riess 
Music from APM Music


Transcript

All narration is presented in text form within the video. In addition, a full transcript will be available in the Library in the near future. Check back soon!