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2022-05-25: The Evolution of the Modern Milky Way Galaxy

  • 03:22: ... are too small to see at those great distances.   The most distant galaxy known as of the filming  of this episode was discovered only in ...

2021-12-10: 2021 End of Year AMA!

  • 00:02: ... powerful tool because if you notice a cepheid variable out there in a distant galaxy all you need to do is time its pulsation rate and if your time is ...

2021-03-16: The NEW Crisis in Cosmology

  • 01:16: ... first figured this out. Long story short  - when a distant galaxy’s light travels to   us through the expanding universe it ...

2018-10-03: How to Detect Extra Dimensions

  • 01:42: ... the electromagnetic spectrum and, ultimately, with the discovery of the distant galaxy in which the explosion ...

2017-12-20: Extinction by Gamma-Ray Burst

  • 03:16: Roughly once per day, the jet from such an explosion in a distant galaxy reaches the earth and is detected by the Swift or Fermi satellites.

2017-08-02: Dark Flow

  • 04:11: This allows astronomers to find extremely distant galaxy clusters just by studying the CMB.

2015-10-22: Have Gravitational Waves Been Discovered?!?

  • 03:58: Any g-wave that we're likely to spot is going to come from a distant galaxy, hundreds of millions of light-years away.

2015-02-25: How Do You Measure the Size of the Universe?

  • 03:07: ... space were not expanding, then light from a distant galaxy would be the same color when it arrived on Earth as it was when it first ...
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