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2022-11-23: How To See Black Holes By Catching Neutrinos

  • 15:58: Feynstein 100 asks if stable heavy elements like the island of stability could exist, then shouldn't they be present on earth and be found already?
  • 16:33: ... heavy elements are produced in supernovae or in colliding neutron stars by the ...

2022-11-16: Are there Undiscovered Elements Beyond The Periodic Table?

  • 03:28: Well, actually technetium is produced in nature - just like other heavy elements, in the core of massive stars.
  • 03:57: A more common term is radioactive, which we tend to associate with very heavy elements like uranium and plutonium.

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

  • 04:23: In the first couple billion years, the universe didn’t contain enough heavy elements for rocky planets to form.

2022-10-26: Why Did Quantum Entanglement Win the Nobel Prize in Physics?

  • 17:42: ... commonalities with Earth -  similar age system, similar heavy element abundances, maybe gas  giants in the outer ...

2022-06-22: Is Interstellar Travel Impossible?

  • 06:41: This stuff comes from heavy elements that are fused in the cores of massive stars and ejected in supernovae or in the winds from giant stars.

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

  • 14:38: ... that episode I said that parts of the galaxy   with too much heavy element abundance might not  produce life because those systems would ...
  • 05:11: ... same number of supernovae and other explosions. We can measure the heavy element   abundance - also called metallicity - by looking  for the dips and ...
  • 08:29: ... are different in other ways - for example, they tend to have fewer heavy elements. That suggests   they formed before the thin disk stars - ...
  • 16:41: ... to seed the surface of the planet with a   high abundance of heavy elements - which was  perhaps necessary for life to get started.   ...

2022-05-18: What If the Galactic Habitable Zone LIMITS Intelligent Life?

  • 05:52: ... some metallicity.   “Metallicity” is our measure of the  heavy element content of a cloud   or a star. It comes from the fact that ...
  • 11:12: ... the probability of the emergence of planets   based on heavy element abundance; the likelihood  of surviving obliteration by ...
  • 05:52: ... some metallicity.   “Metallicity” is our measure of the  heavy element content of a cloud   or a star. It comes from the fact that ...
  • 00:24: ... could never have formed a planetary system, but   too much heavy elements and it might host only gas giants. Yep, the Sun seems pretty ...
  • 06:28: ... of these heavy elements are produced in  massive stars and then spread through the ...
  • 07:36: ... burning their way up the periodic table   and spraying heavy elements into the surrounding  gas in colossal supernova ...
  • 10:04: ... some time for the emerging spiral disk  to seed itself with enough heavy elements to   form planetary systems. In fact, some of  our galaxy ...
  • 00:24: ... for photosynthesis.   If the sun contained significantly less heavy elements it could never have formed a planetary system, but   too much ...
  • 07:36: ... primordial generation of stars  were unpolluted by heavy elements,   which means they couldn’t possibly have formed  planets. No chance ...

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

  • 03:47: ... star formation history and heavy element abundance tells us there haven’t been anywhere near enough supernovae to ...
  • 03:37: ... not so much the black holes produced in those explosions, but the heavy elements forged in the cores of these stars during their ...

2020-04-28: Space Time Livestream: Ask Matt Anything

  • 00:00: ... fact gold may be forged in the mergers of neutral sites as many of the heavy elements and many of the elements in your body okay so we have this is not ...

2019-06-06: The Alchemy of Neutron Star Collisions

  • 00:00: ... become clear that the truth is even more mind-blowing many of Earth's heavy elements including most precious metals were produced in an even more spectacular ...
  • 00:34: ... the elements the r-process produces only Neutron rich isotopes of most heavy elements neutron poor isotopes are likely made by the slow Neutron capture or ...
  • 02:47: ... transforms some of the absorbed neutrons into protons some of these heavy elements are sprayed into the surrounding space by the energy of the collision ...
  • 00:00: ... become clear that the truth is even more mind-blowing many of Earth's heavy elements including most precious metals were produced in an even more spectacular events ...
  • 00:34: ... the elements the r-process produces only Neutron rich isotopes of most heavy elements neutron poor isotopes are likely made by the slow Neutron capture or s-process ...

2019-05-16: The Cosmic Dark Ages

  • 02:52: ... explosions contributed to reionization. They also scattered the first heavy elements into the surrounding pristine gas, which would itself collapse into the ...

2018-07-04: Will A New Neutrino Change The Standard Model?

  • 12:43: Well, the moon is definitely an option for mining, and it's going to have some useful heavy elements from crashed asteroids.

2018-06-27: How Asteroid Mining Will Save Earth

  • 02:46: C-type asteroids do contain some valuable heavy elements, but not as much as some of the other asteroid types.

2017-09-13: Neutron Stars Collide in New LIGO Signal?

  • 08:43: Most heavy elements like gold, lead, uranium, et cetera, are produced when the nuclei of lighter elements capture fast-moving neutrons.
  • 08:55: It definitely happens in supernova explosions, which for a long time were thought to be the primary source of heavy elements.

2017-06-07: Supervoids vs Colliding Universes!

  • 13:41: ... old measures from the past, backwards stellar populations, calling all heavy elements metals, [INAUDIBLE],, stellar ...

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

  • 00:13: The resulting swarms of supernova explosions enriched the universe with the first heavy elements and lots of black holes.
  • 01:19: Astronomers categorize stars according to the relative quantity of heavy elements that they possess.
  • 08:20: They produced the first heavy elements that would someday become dust and new stars and planets and-- well-- us.
  • 10:01: They may also have churned up the heavy elements that they produce in their own cores to enhance their metalicity.

2016-04-06: We Are Star Stuff

  • 09:04: This is also seen as a supernova, and it also laces the galaxy with heavy elements.
  • 09:16: ... may be that many heavy elements, including a lot of the gold in the universe, were formed not in a ...

2016-02-24: Why the Big Bang Definitely Happened

  • 05:46: ... each other, rich in the raw materials of star formation but poor in the heavy elements released by generations of ...
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