Search PBS Space Time

Results

2022-11-09: What If Humanity Is Among The First Spacefaring Civilizations?

  • 06:53: The more steps there are in the typical evolutionary pathway, the earlier humanity must be.
  • 09:47: ... steps, then virtually all civilization will result from very drawn-out evolutionary processes trillions of years in the ...

2022-07-27: How Many States Of Matter Are There?

  • 13:30: Check out “Why Am I Like This” which looks at the evolutionary biology of the human body and how we ended up with all these quirks.

2022-06-22: Is Interstellar Travel Impossible?

  • 00:38: ... - like the idea that we are among the first to overcome some extreme evolutionary challenges - to the horrific - like the prospect that every civilization ...

2020-06-08: Can Viruses Travel Between Planets?

  • 12:38: ... found in populations of horseshoe bats - and the philogenics - the evolutionary path - is consistent with it evolving out of that ...

2020-04-07: How We Know The Earth Is Ancient

  • 06:07: ... course geology and evolutionary biology are now intimately connected. We can trace the progress of ...

2019-12-09: The Doomsday Argument

  • 09:03: ... you define our reference class as all observers in our past and future evolutionary chain, then we could still be in the middle of that chain but have ...

2019-11-11: Does Life Need a Multiverse to Exist?

  • 14:34: ... type scenarios because the factors we talk about are needed for OUR evolutionary tree, but other types of life are no doubt ...
  • 15:51: ... Roman, although this particular point was only intended as an example of evolutionary great filters - and I certainly didn't come up with this one ...
  • 16:03: ... also worth pointing out that this particular evolutionary event, the first evolution of the eukaryote cell, took at least half of ...

2019-11-04: Why We Might Be Alone in the Universe

  • 10:29: ... filter is one or more extremely improbable steps that happened in the evolutionary transition from single-cellular life to complex life, or to ...
  • 10:45: ... seems to have been a freak evolutionary incident, in which two much simpler cell types fused - one absorbing the ...

2018-12-12: Quantum Physics in a Mirror Universe

  • 00:02: ... they also had some really cool fringe notions like the epidemics and evolutionary leaps might be due to microbes arriving from space in fact this stuff ...

2018-10-31: Are Virtual Particles A New Layer of Reality?

  • 16:40: It really could be that modern Homo sapiens underwent an improbable genetic or cultural evolutionary movement that qualifies as a great filter.

2018-10-25: Will We Ever Find Alien Life?

  • 09:44: ... watery planets may be abundant, but maybe there's a step in that slow evolutionary crawl from primordial chemical soup to techno monkey that makes advanced ...

2018-05-09: How Gaia Changed Astronomy Forever

  • 03:39: ... details within that sequence, an unexpectedly clear separation of evolutionary paths that may reveal the composition and past life of the white ...

2018-02-21: The Death of the Sun

  • 07:58: It's wildly speculative and optimistic to even imagine that species, or its evolutionary or silicon descendants, will still exist through all of this.

2017-08-24: First Detection of Life

  • 05:08: ... water is a little harder to come by, yet it's incredibly important for evolutionary ...

2017-05-31: The Fate of the First Stars

  • 11:45: This would only increase the isolation, and perhaps speed up the evolutionary divergence.

2015-02-18: Is It Irrational to Believe in Aliens?

  • 06:12: There very well might be an evolutionary "great filter" that works against intelligent species.
16 result(s) shown.