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2022-03-08: Is the Proxima System Our Best Hope For Another Earth?

  • 20:12: ... density at extremely early times to leave an imprint on the CMB- on the density fluctuations from the early ...
  • 20:24: ... later development of large scale structure is defined by those density fluctuations, so in that sense cosmic strings could have influenced it - but not ...

2021-12-20: What Happens If A Black Hole Hits Earth?

  • 01:23: ... density everywhere - matter was smoothly spread out with only tiny density fluctuations. And so gravity had no strongly preferred direction to collapse towards. ...

2021-08-10: How to Communicate Across the Quantum Multiverse

  • 00:53: ... All these waves overlap to produce a fantastically complex bath of density fluctuations. A snapshot of particle positions in the room would reveal a hopeless ...

2021-05-25: What If (Tiny) Black Holes Are Everywhere?

  • 08:56: Back then, the density fluctuations may have been strong enough to generate crazy numbers of tiny black holes.

2021-04-13: What If Dark Matter Is Just Black Holes?

  • 04:07: ... density fluctuations in the cosmic microwave background tell us that the gravity of dark ...
  • 04:48: But the most mainstream mechanism is that they collapsed from density fluctuations.

2019-11-18: Can You Observe a Typical Universe?

  • 09:32: ... very least we need extra physics: for example, we need the right initial density fluctuations to evolve and expand for the right amount of time, so that life may ...

2019-02-20: Secrets of the Cosmic Microwave Background

  • 02:05: ... we model the early Universe as many overlapping layers of simple density fluctuations Each layer has fluctuations of a certain size defined by the mathematics ...

2019-02-07: Sound Waves from the Beginning of Time

  • 03:44: Now, in order for it to do anything interesting, We need one final ingredient: Density fluctuations.
  • 07:30: ... caution: The story I just told you about the early development of these density fluctuations is far from the whole ...
  • 09:27: ... that galaxies should mostly form in the centers of those primordial density fluctuations, where the dark matter was the most ...

2019-01-09: Are Dark Matter And Dark Energy The Same?

  • 11:39: Just quickly, the density fluctuations seen in the afterglow of the Big Bang reveal a universe that is spatially flat.

2018-01-10: What Do Stars Sound Like?

  • 08:05: For example, we can map the currents of plasma and density fluctuations as they shift beneath the solar surface.

2016-10-12: Black Holes from the Dawn of Time

  • 02:19: These density fluctuations were enough to kick-start the formation of galaxies, but certainly not enough to immediately collapse into black holes.
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