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

  • 14:44: We know that this Cherenkov is potentially visible based on reports of flashes by radiation therapy patients.

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

  • 11:17: ... in every direction through space at close to the speed of light, making visible changes wherever they go, and that they stick around for a long ...

2022-10-12: The REAL Possibility of Mapping Alien Planets!

  • 01:25: ... limit. We are not yet   able to repeat this trick with visible light  because this requires exact measurement of the   ...
  • 10:07: ... The long focal line means that an Einstein ring   will be visible for years of travel time, slowly expanding outwards as we get ...
  • 15:45: ... have addressed. Actually   no - Hubble was most sensitive at visible  and ultraviolet wavelengths, while JWST is   an infrared ...

2022-09-21: Science of the James Webb Telescope Explained!

  • 03:43: The telescope is focused on the infrared - that light on the longer-wavelength side of visible light.
  • 03:50: Hubble, on the other hand, did visible light into ultraviolet.
  • 05:16: ... images as well as break light up into spectra, with sensitivities from visible red light through the slightly longer wavelengths of near-infrared all ...

2022-09-14: Could the Higgs Boson Lead Us to Dark Matter?

  • 10:13: ... the ATLAS detector at the LHC: this event has caused a jet of various visible particles to shoot off to the ...
  • 10:30: ... be more stuff firing out in the opposite direction of the jet, but no visible particles appeared on that ...
  • 11:33: ... of the visible messy products of this particular type of event are launched in the same ...

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

  • 11:55: Auroras which may even be visible from Earth by a near-future telescope.
  • 12:12: There’s far less visible light, so to our eyes the star would appear very dim.
  • 14:45: Four lights are visible through the thick atmosphere - the gleaming white twins Tolimar and Rigel Kentaurus, the glowering red orb of Proxima herself.

2022-01-12: How To Simulate The Universe With DFT

  • 18:10: ... Dyson sphere reprocessing a sun’s visible light into infrared, ultimately releasing exactly as much energy as it ...
  • 18:34: It’s conceivable that they could channel it into a less visible form - perhaps microwave beams sent to hopefully-empty patches of the sky.

2021-12-29: How to Find ALIEN Dyson Spheres

  • 02:58: But if you shifted your gaze from visible light to infrared, you’d find all of the missing energy.
  • 03:05: ... its 6000K surface is distributed at all wavelengths, but it peaks in the visible part of the ...
  • 07:31: Two pure thermal spectra would be stitched into one weird spectrum with too little light at visible wavelengths and too much at infrared wavelengths.
  • 09:20: At visible wavelengths a star’s color might not change much - it’ll just look dimmer.
  • 09:31: But if we measure its colour using an infrared wavelength along with our visible light, we’d find too much of that IR.
  • 09:40: The star would look cooler - lower temperature than suggested by its visible color alone.
  • 09:46: ... sphere that intercepts only 1% of its star's light could shift the visible-to-infrared color by a factor of more than ...
  • 10:28: The team started by looking for stars that were a little too faint for their visible-light color - below the main sequence.
  • 12:33: ... to look for galaxies that had too much infrared light compared to their visible ...

2021-11-10: What If Our Understanding of Gravity Is Wrong?

  • 00:24: ... apart - assuming  they are held together by the gravity of their visible mass ...
  • 00:42: ... the gravity of visible matter is also way too weak to hold galaxy clusters together, or to bend ...

2021-04-21: The NEW Warp Drive Possibilities

  • 05:11: ... field required more energy than is contained in all the matter in the visible universe to move a moderate-sized ...

2021-01-26: Is Dark Matter Made of Particles?

  • 01:44: ... visible universe is made of these particles, interacting with each other through ...
  • 03:58: These tell us something really important: dark matter is far more spread out - more diffuse - than almost all of the visible matter.
  • 04:25: But no - dark matter seems to stay puffed up in gigantic halos surrounding the much more concentrated clumps of visible matter.

2020-10-05: Venus May Have Life!

  • 02:22: ... appear to absorb the Sun’s light in a weird way - more short wavelength visible and UV light is sucked up than expected, leading to the yellow colour of ...

2020-08-17: How Stars Destroy Each Other

  • 02:45: But it can be found if you look a little off center for a spot of light that flares erratically from visible to X-ray wavelengths.
  • 07:38: He observed these objects using visible wavelength of light - and found one object was indeed pulsing.
  • 08:42: And the pulsing of visible light?
  • 10:05: Those supernovae are visible not just across the galaxy, but in galaxies across the universe.

2020-04-14: Was the Milky Way a Quasar?

  • 12:21: ... cascade that may have helped forged the Fermi Bubbles would have been visible to the naked eye for our early hominid ...

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

  • 04:32: ... analogy - that the universe must be vastly larger than what was visible at the ...

2020-03-03: Does Quantum Immortality Save Schrödinger's Cat?

  • 14:54: ... actually, most visible-light photons will travel the length of a typical double-slit experiment ...

2020-02-24: How Decoherence Splits The Quantum Multiverse

  • 14:38: ... only see what remains visible to us, stranded as we are on a single branch of the universal ...

2020-01-13: How To Capture Black Holes

  • 00:24: ... the sky, When we learned to see in neutrinos the core of the Sun became visible to us. But now that our vision extends to gravitational waves, what else ...
  • 04:08: ... quasar phenomenon, and their accretion disks glow bright enough to be visible from the other side of the universe. More generally, these feeding ...
  • 09:53: ... produces a flash of ultraviolet radiation - and those flashes may be visible to telescopes on Earth right after the gravitational waves ...

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

  • 03:35: ... difficult or unlikely steps in the development from barren planet to visible technological ...

2019-07-25: Deciphering The Vast Scale of the Universe

  • 01:41: That’s not to say we’d never seen other galaxies – Andromeda is visible to the naked eye – if you have good vision.
  • 01:48: And many nearby galaxies were visible as fuzzy blobs in our early telescopes.

2019-06-20: The Quasar from The Beginning of Time

  • 03:27: For example, visible light – the wavelength range that our eyes are sensitive to – spans only a tiny fraction of the spectrum.
  • 03:40: For example, viewed in visible light, the Andromeda galaxy shows us newborn stars.
  • 03:45: ... atmosphere is transparent to visible light, so a ground-based telescope can see a visible universe, as can ...

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

  • 13:02: ... recombination and then the cosmic background would still have been visible red orange everywhere reflecting the 3000 Kelvin temperature at that ...

2019-04-24: No Dark Matter = Proof of Dark Matter?

  • 00:03: ... rotation rates of spiral galaxies were too fast given the mass of their visible stars alone they should throw themselves to pieces spinning that quickly ...

2019-04-03: The Edge of an Infinite Universe

  • 01:22: To review: the particle horizon defines the limit of the visible past, and there’s also cosmic event horizon defining the limit of the visible future.

2019-03-28: Could the Universe End by Tearing Apart Every Atom?

  • 09:44: And so there should be a handful of galaxies still visible to us.

2019-03-20: Is Dark Energy Getting Stronger?

  • 02:22: Those same textbooks talk about dark matter – an invisible stuff whose gravitational influence overwhelms all types of visible matter combined.

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

  • 01:23: Based on the gravity from visible matter alone they shouldn’t be able to hold themselves together.

2018-12-20: Why String Theory is Wrong

  • 03:43: Shrink it down to around 10 to the power of negative thirtieth of a meter, so it's only visible to things equally miniscule.

2018-11-21: 'Oumuamua Is Not Aliens

  • 03:38: In regular comets, the outgassing is typically visible as sunlight reflects off dust carried along with the jets.
  • 04:26: With no visible coma or tail, it doesn't look like outgassing, so maybe it's radiation pressure.
  • 05:54: Oumuamua appears to be accelerating out of the solar system in a way completely consistent with outgassing except there is no visible outgassing.
  • 07:31: The lack of visible outgassing is weird, but, frankly, it's not that weird.

2018-11-14: Supersymmetric Particle Found?

  • 05:53: It spots neutrinos when they're decayed or electrons, muons, or tau particles, which in turn produce visible light as they streak through the ice.

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

  • 03:52: And because they almost certainly have a head start on us of at least thousands of years, that galactic gentrification might be visible to us.
  • 09:17: ... great filter that seriously limits the Milky Way's production of highly visible galactic ...

2018-08-01: How Close To The Sun Can Humanity Get?

  • 01:37: It's visible to the naked eye only during a total solar eclipse.
  • 02:24: Auroras normally only visible near the poles were witnessed across the entire planet.

2018-05-02: The Star at the End of Time

  • 05:46: First, they shine white as their black-body spectrum spans the visible range, just like our Sun.

2018-03-28: The Andromeda-Milky Way Collision

  • 01:31: On the dark sky, it's visible to the naked eye as a faint smudge.
  • 08:37: ... view of our dynamical evolving universe, when we have a neighbor whose visible stars revealed its great distance, and whose spiral structure helped us ...
  • 10:06: ... whereby the gravitational response of the universe doesn't match the visible matter given our understanding of that matter and/or the laws of ...

2018-03-21: Scientists Have Detected the First Stars

  • 03:43: So the research team added together the CMB light from the entire visible sky and recorded this spectrum.

2018-03-15: Hawking Radiation

  • 09:22: This radiation is visible only to distant observers.

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

  • 08:12: ... helioseismic holography, the visible wave field-- so the distribution of Doppler velocities across the ...

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

  • 04:22: And nitrogen dioxide absorbs visible light, reducing the energy received from the sun.

2017-11-29: Citizen Science + Zero-Point Challenge Answer

  • 03:15: ... provides the raw, visible, and infrared images to the public via their website, and talented folk ...

2017-09-28: Are the Fundamental Constants Changing?

  • 14:02: To do something similar with visible light, you'd need a nanofabricated structure with actual concentric rings.

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

  • 03:01: This was the Hulse-Taylor binary, two neutron stars in orbit around each other, one of which is visible to us as a pulsar.
  • 06:07: "Optical counterpart" means that there's a source of visible light associated with the gravitational wave.

2017-08-16: Extraterrestrial Superstorms

  • 05:02: Most of Jupiter's visible clouds are ammonia ice, tainted with colorful impurities, but there also clouds of hydrogen sulfide and regular H2O.

2017-04-05: Telescopes on the Moon

  • 01:40: On the moon, the stars are visible day and night.
  • 01:51: ... is that it can see into near ultraviolet wavelengths and in the visible range observable within our ...

2017-03-29: How Time Becomes Space Inside a Black Hole

  • 07:49: At the moment of crossing, light rays from the event horizon itself are suddenly visible.

2017-03-01: The Treasures of Trappist-1

  • 05:29: On the inner planets' sunny side, the star will provide about as much visible light as our sun.

2017-02-22: The Eye of Sauron Reveals a Forming Solar System!

  • 09:25: We'll need to figure out if this planet is real and what causes its strange mismatch in visible and infrared light.

2017-02-15: Telescopes of Tomorrow

  • 01:34: These cameras see mostly at infrared wavelengths of light, unlike Hubble's, which are optimized for visible and ultraviolet light.
  • 02:06: Compare two shots from Hubble-- this taken in visible wavelengths, this in infrared.
  • 03:36: This means that infrared has a disadvantage over visible or ultraviolet light.
  • 03:53: Its infrared pics will be just as clear as Hubble's visible light images.
  • 04:31: But without sensitivity to visible or ultraviolet wavelengths, it will not replace Hubble.
  • 05:21: But GMT is built to explore visible wavelengths, just like Hubble.
  • 09:06: ... also catch the visible light counterparts to gamma ray bursts, the most energetic explosions in ...

2017-01-04: How to See Black Holes + Kugelblitz Challenge Answer

  • 00:40: Although they don't emit any light themselves, they can have a very visible effect on their surroundings.
  • 01:18: ... the motion of a visible star reveals it to be in orbit around a companion that is dark invisible ...
  • 01:29: This happens when the substance of a visible star is accreting onto a companion neutron star or black hole.
  • 02:09: Sag A star is visible in X-rays, which occasionally flash brighter as it gobbles up a wisp of gas.
  • 04:09: At visible wavelengths, this should look like a brightening of the star, an effect called microlensing.

2016-11-09: Did Dark Energy Just Disappear?

  • 14:52: So that's 500 nanometers' separation for visible light.

2016-09-07: Is There a Fifth Fundamental Force? + Quantum Eraser Answer

  • 03:51: But the researchers suggest it could mediate interactions between the so-called dark sector and the visible universe.
  • 05:12: There's no visible interference pattern at all.

2016-08-24: Should We Build a Dyson Sphere?

  • 00:53: ... only as strange points of infrared lights but otherwise black at visible ...

2016-07-06: Juno to Reveal Jupiter's Violent Past

  • 11:25: Our eyes can't register the difference in brightness across the visible part of the spectrum, so we register the color as white.

2016-06-22: Planck's Constant and The Origin of Quantum Mechanics

  • 05:43: But for higher frequencies, like visible and ultraviolet, it predicted brightnesses that were way too high.

2016-05-04: Will Starshot's Insterstellar Journey Succeed?

  • 04:24: Another big difference compared to Starwisp is that Starshot will be powered by a visible light laser, not a maser.
  • 04:31: This is important because visible light lasers can maintain a much tighter beam than a maser can.

2016-03-02: What’s Wrong With the Big Bang Theory?

  • 04:57: But there are some clues still visible at later times.

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

  • 06:29: ... at the moment the CMB was created, and those ripples should still be visible in the way that galaxies are spread out on the ...

2016-02-11: LIGO's First Detection of Gravitational Waves!

  • 05:55: ... multiple telescopes that span the electromagnetic spectrum from radio to visible to ...

2016-02-03: Will Mars or Venus Kill You First?

  • 06:06: ... typically take days to reach Mars from the sun and are preceded by some visible indication like a solar flare, whose light reaches you in ...

2015-10-15: 5 REAL Possibilities for Interstellar Travel

  • 06:44: ... humans, we're going to need to a bigger boat, which means a proper visible light laser and a larger sail, coated with advanced, reflective and heat ...

2015-07-08: Curvature Demonstrated + Comments

  • 01:30: This vector right now is drawn super, super long, because it'll make it more visible on camera.
  • 02:22: ... ends up-- and now I'm going to blow up the vector again to make it more visible-- sliding and projecting down, sliding and projecting down, sliding and ...

2015-06-03: Is Gravity An Illusion?

  • 10:42: Earth analogs in Earth-like orbits around Sun-like stars are not going to be visible.

2015-05-13: 9 NASA Technologies Shaping YOUR Future

  • 05:22: See, fog is opaque to visible light, but somewhat transparent to infrared light.

2015-04-01: Is the Moon in Majora’s Mask a Black Hole?

  • 07:43: ... OK To Be Smart" where Joe Hanson explained that the average color of all visible stars in the universe comes out to an off-white called Cosmic ...

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

  • 03:22: In more extreme cases, the wavelength can be stretched out of the visible spectrum altogether, into microwaves or radio waves.
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