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                               “The Hubble Tension and Early Dark Energy"

 

        Date:

    Download-files:

      Time:

  Thursday, 12 Nov 2020

    Video-Recording for any system with MP4-support

   - Video.mp4  (ca.447 Mb)

 

 15:15 – 16:25

 

 

Abstract:

 

We’ve known since the late 1920s that the Universe is expanding. However,

the expansion rate currently inferred from measurements of the cosmic microwave

background now disagrees with that obtained from supernova measurements.

Over the past few years, theorists have been exploring the possibility that this

Hubble tension is explained by some new “early dark energy”: a new component

of matter that may have been dynamically important several hundred thousand

years after the Big Bang.

 

Speaker today:    Marc Kamionkowski   (Johns Hopkins University)

 

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