
20220824: What Makes The Strong Force Strong?
 19:07: Yes, they very much would. So changing quintessence means changing strength of dark energy, which means changing rate of accelerating expansion!


20220817: What If Dark Energy is a New Quantum Field?
 07:31: ... there’s a final reason to look for a mechanism for accelerating expansion due being some other than quantum fluctuations. It’s because we know ...
 11:51: ... driven by its equation of state. Any value of omega less than ⅓ means accelerating expansion, and omega 1 is a constant energy density. Quintessence is often used to ...


20220330: Could The Universe Be Inside A Black Hole?
 02:22: ... the accelerating expansion of the universe means the cosmological event horizon is closer to us ...


20210818: How Vacuum Decay Would Destroy The Universe
 11:34: ... vacuum decay starts beyond several billion light years, the accelerating expansion of the universe will throw us away from it faster than ...


20210217: Gravitational Wave Background Discovered?
 00:00: ... time before the big bang cosmic inflation was driving exponentially accelerating expansion and huge gravitational waves would have been produced in the phase ...


20190930: How Many Universes Are There?
 01:31: ... inflating – the inflaton field in that patch loses its energy and so accelerating expansion stops ...
 06:31: ... energy were much stronger then our universe would have restarted its accelerating expansion too quickly for galaxies and stars and life to ever ...


20190916: Could We Terraform Mars?
 17:20: ... density, then it's possible that it could now be powering the current accelerating expansion that we call dark ...


20190806: What Caused the Big Bang?
 00:00: Every astronomy textbook tells us that soon after the Big Bang there was this period of exponentially accelerating expansion called Cosmic Inflation.
 03:04: Now, we know that something like this exists because we've observed it in the accelerating expansion produced by dark energy.


20190328: Could the Universe End by Tearing Apart Every Atom?
 00:05: ... and dogs living together and then tragically separated by the infinitely accelerating expansion of space on subatomic ...
 00:25: ... the volume you increase the overall amount of dark energy hence the accelerating expansion mathematically we describe a constant energy density with the ...
 05:51: ... fact, if the parameter is below 1/3 but larger than 1, that's still accelerating expansion but in that case the dark energy is decreasing over ...


20190320: Is Dark Energy Getting Stronger?
 01:59: ... textbooks tell us that we can this accelerating expansion is what you expect if empty space has a constant energy density – so ...


20190220: Secrets of the Cosmic Microwave Background
 12:34: ... modern galaxies and clusters and the dark energy based on measuring the accelerating expansion rate of the Universe So that's how you lay bare the secrets of the ...


20190109: Are Dark Matter And Dark Energy The Same?
 02:33: So why does it result in an outwardpushing, accelerating expansion?
 03:42: And a positive Lambda means accelerating expansion.
 10:40: But then that deceleration turned around as dark energy kicked in, resulting in the current accelerating expansion.


20181003: How to Detect Extra Dimensions
 08:27: To us, that would look like an accelerating expansion of the universe.


20180823: How Will the Universe End?
 03:13: ... before the last red dwarf fades out, the accelerating expansion of the universe will have dragged all galaxies beyond the Virgo ...
 09:09: ... stuff in the universe will become more and more diffuse and dim as the accelerating expansion of space continues and the infinitely long progression to absolute heat ...


20180411: The Physics of Life (ft. It's Okay to be Smart & PBS Eons!)
 12:44: But the accelerating expansion of the universe will prevent any photons emitted today from galaxies at that distance or beyond from ever reaching us.


20180214: What is Energy?
 10:48: This leads to effects like dark energy and the accelerating expansion of the universe.


20171108: ZeroPoint Energy Demystified
 00:53: ... the other hand, our observations of the accelerating expansion of the universe suggest a vacuum energy density of only 10 to the power ...


20171102: The Vacuum Catastrophe
 07:20: ... unlike the Lamb shift or the Casimir effect, the observation of accelerating expansion allows us to measure the absolute density of vacuum ...


20171025: The Missing Mass Mystery
 11:45: This leads to the unintuitive result that it acts repulsively, accelerating expansion.


20171019: The Nature of Nothing
 10:14: The observation is the accelerating expansion of the universe.


20161109: Did Dark Energy Just Disappear?
 01:46: They claim the data are consistent with there being no dark energy; no accelerating expansion.
 03:51: An accelerating expansion is still preferred, it's just that a nonaccelerating history is not excluded with quite the same confidence.
 11:18: It's not even like accelerating expansion is that weird anymore.


20160518: Antigravity and the True Nature of Dark Energy
 11:01: But both agree that a constant energy density and the resulting negative pressure leads to accelerating expansion.


20160504: Will Starshot's Insterstellar Journey Succeed?
 08:35: ... last episode, we talked about how dark energy causes this exponentially accelerating expansion of the universe and you guys had a lot to say in the ...


20160427: What Does Dark Energy Really Do?
 06:50: ... discovery of the accelerating expansion of the universe earned both teams the Nobel Prize in 2011, and it's ...
 07:10: However, this accelerating expansion can be explained with the same bit of math, the cosmological constant, pointing to the same physics, dark energy.
 08:59: That's exponential growth, and it looks like an accelerating expansion.


20160302: What’s Wrong With the Big Bang Theory?
 07:52: ... out its temperature and then enter the state of insane, exponentially accelerating expansion in which it increased in size by a factor of at least 10 to the power of ...
