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A fun-filled discussion of the big, mind-blowing, unanswered questions about the Universe. In each episode, Daniel Whiteson (a Physicist who works at CERN) and Jorge Cham (a popular online cartoonist) discuss some of the simple but profound questions that people have been wondering about for thousands of years, explaining the science in a fun, shorts-wearing and jargon-free way.
- 605 - What is quantum biology?
Daniel and Kelly explore how biological systems rely on the quantum nature of matter.
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Thu, 02 May 2024 - 604 - What is gravitoelectromagnetism?
Daniel and Katie bushwack their way between theories of gravity and electromagnetism, looking for the elusive connection.
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Tue, 30 Apr 2024 - 603 - Physics of the Internet
Daniel and Jorge talk about how our understanding of physics is central to making the internet work.
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Thu, 25 Apr 2024 - 602 - Listener Questions 54: String cosmology, cosmic strings, and alien numbers
Daniel and Jorge answer questions from listeners like you. Get your questions answered: questions@danielandjorge.com
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Tue, 23 Apr 2024 - 601 - Can element 115 be used for anti-gravity?
Daniel and Jorge talk about real science of element 115 and whether it aligns with the spectacular story of anti-gravity alien ships at Area 51.
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Thu, 18 Apr 2024 - 600 - Listener Questions 53: Strong force, primordial atoms and infinities
Daniel and Jorge answer questions from listeners like you. Get your questions answered: questions@danielandjorge.com
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Tue, 16 Apr 2024 - 599 - How metallic is the Sun?
Daniel and Jorge explore the enduring mystery of how much heavy metal sits in our Sun.
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Thu, 11 Apr 2024 - 598 - Listener Questions 52
Daniel and Jorge talk about aliens, answer a question from a high school class, and advise a listener about destroying the moon.
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Tue, 09 Apr 2024 - 597 - Are physics and religion in harmony or conflict?
Daniel talks to Rabbi Jack Schlacter, a physicist at Los Alamos, about the movie Oppenheimer and the connections and conflicts between physics and judaism.
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Thu, 04 Apr 2024 - 596 - The most promising particle physics anomalies
Daniel talks to Harry Cliff, author of the new book "Space Oddities", about the most intriguing unexplained particle physics experiments and what they might mean.
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Tue, 02 Apr 2024 - 595 - Listener Questions 51
Daniel and Jorge answer questions about the speed of light, entanglement and time!
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Thu, 28 Mar 2024 - 594 - What happened to M33's black hole?
Daniel and Jorge talk about the mystery of the missing mysterious black hole at the heart of M33
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Tue, 26 Mar 2024 - 593 - Listener Questions 50: Dark matter, photon wavelengths and rainbows!
Daniel and Jorge answer questions from listeners like you!
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Thu, 21 Mar 2024 - 592 - How does electricity work?
Daniel and Katie explain how electric current, lightning and static electricity emerge from the strange quantum nature of electrical charge.
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Tue, 19 Mar 2024 - 591 - Physics of Chocolate
Daniel and Jorge talk about the deep but tenuous connection between physics and chocolate.
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Thu, 14 Mar 2024 - 590 - Listener Questions 49: Black Holes, Neutrinos and Gravitational waves!
Daniel and Jorge answer questions from listeners and get stuck in philosophical rabbit holes.
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Tue, 12 Mar 2024 - 589 - Is the Universe made of waves (Part 2)
Daniel talks to Matt Strassler about how everything is vibrating, and his new book "Waves in an Impossible Sea" (Part 2)
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Thu, 07 Mar 2024 - 588 - Is the Universe made of waves (Part 1)
Daniel talks to Matt Strassler about how everything is vibrating, and his new book "Waves in an Impossible Sea" (Part 1)
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Tue, 05 Mar 2024 - 587 - Are there charm quarks in the proton?
Daniel and Jorge talk about whether the cozy story of the proton might need to be updated to describe all of its true charm.
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Thu, 29 Feb 2024 - 586 - Why is quantum gravity so hard?
Daniel and Jorge explain why the two theories of physics are so at odds with each other.
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Tue, 27 Feb 2024 - 585 - What is cold welding?
Daniel and Kelly talk about how its possible to merge metals without melting!
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Thu, 22 Feb 2024 - 584 - How is general relativity wrong?
Daniel and Jorge talk about why we think Einstein was wrong about the nature of the Universe.
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Tue, 20 Feb 2024 - 583 - Listener Questions 48: Vacations, Destruction and Anti-matter Black Holes
Daniel and Jorge answer questions from listeners and try to avoid giving marriage advice.
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Thu, 15 Feb 2024 - 582 - Have interstellar meteors hit the Earth?
Daniel and Kelly analyze recent claims of the recovery of iron spheres from interstellar meteors.
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Tue, 13 Feb 2024 - 581 - Can we see inside things using muons?
Daniel and Jorge talk about the weirdness of muons and how they can let us see inside things.
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Thu, 08 Feb 2024 - 580 - Why do some galaxies have bars?
Daniel and Jorge explain what we know about the bars at the center of galaxies, and what mysteries they might hide.
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Tue, 06 Feb 2024 - 579 - What is quantum relativity?
Daniel and Katie grapple with an effort to explain how quantum mechanics could arise from relativity.
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Thu, 01 Feb 2024 - 578 - Were all the forces once one?
Daniel and Jorge explore whether the fundamental forces can be linked together, and whether they all acted as one in the early Universe.
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Tue, 30 Jan 2024 - 577 - What is the dark flow?
Daniel and Jorge talk about whether the whole Universe is in motion, and what could be pulling on it
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Thu, 25 Jan 2024 - 576 - Listener Questions 47: Gravity, Time, Photons
Daniel and Jorge answer questions from listeners like you! Ask your questions@danielandjorge.com
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Tue, 23 Jan 2024 - 575 - What are octonions?
Daniel and Jorge talk about super complex numbers and how they might hold the secrets of the Universe.
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Thu, 18 Jan 2024 - 574 - What's hidden inside planets?
Daniel talks to Prof. Sabine Stanley about what's happening inside planets, and how that helps us understand what's out there.
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Tue, 16 Jan 2024 - 573 - How do particles carry forces?
Daniel and Jorge push and pull on the simple picture of particles exchanging other particles
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Thu, 11 Jan 2024 - 572 - How can we find life on other planets?
Daniel talks to Prof. Aomawa Shields, auther of "Life on Other Planets" about the the climate of exoplanets and her unusual path to astronomy.
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Tue, 09 Jan 2024 - 571 - What are land tides?
Daniel and Jorge talk about how tidal forces shape the Earth itself and the life on it.
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Thu, 04 Jan 2024 - 570 - What is a symmetron?
Daniel and Jorge talk about creative ways to explain the accelerating expansion of the Universe.
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Tue, 02 Jan 2024 - 569 - Does hot or cold water freeze faster?
Daniel and Jorge get the chills when they discover how little we know about water.
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Thu, 28 Dec 2023 - 568 - Listener Questions 46: Mountains, ether and time!
Daniel and Jorge answer questions about reviving old theories, building tall mountains, and passing time.
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Tue, 26 Dec 2023 - 567 - What is the electrical charge of the moon?
Daniel and Jorge talk about whether the moon is positive, negative or neutral!
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Thu, 21 Dec 2023 - 566 - Can planets share an orbit?
Daniel and Jorge talk about whether two planets could share an orbit around a star, or whether there would be too much gravitational squabbling.
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Tue, 19 Dec 2023 - 565 - What shapes can galaxies take?
Daniel and Jorge talk about the weird, wacky shapes of galaxies and the cosmic story they tell.
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Thu, 14 Dec 2023 - 564 - What’s the difference between inertial and gravitational mass?
Daniel and Jorge talk about whether there are two or one kind of mass and the massive consequences.
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Tue, 12 Dec 2023 - 563 - Has our solar system lost any planets?
Daniel and Jorge talk about how instabilities in the early solar system may have ejected an ancient ice giant.
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Thu, 07 Dec 2023 - 562 - Are there galaxies without dark matter?
Daniel and Jorge discuss how dark matter shapes our Universe and whether it would be possible to have a galaxy without it.
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Tue, 05 Dec 2023 - 561 - Does quantum mechanics conserve energy?
Daniel and Jorge explore whether basic rules of our Universe are broken at the quantum scale.
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Thu, 30 Nov 2023 - 560 - Listener Questions 45: Gravity and Black holes
Daniel and Jorge venture to the edge of human knowledge about black holes, gravity and magnetic fields.
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Tue, 28 Nov 2023 - 559 - The Science Fiction Universe of "Invasion"
Daniel and Jorge talk about alien arrival, as depicted on the show "Invasion" and Daniel talks to two of the writers, Tatiana Suarez Pico and Aditi Brennan Kapil about writing science fiction.
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Thu, 23 Nov 2023 - 558 - Who was the first scientist?
Daniel talkes to Prof. James Poskett about how the history of science has much more nuance and global participation than the standard mythology.
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Tue, 21 Nov 2023 - 557 - The Science Fiction Universe of "Venemous Lumpsucker" by Ned Beauman
Daniel and Kelly chat with Ned Beauman, author of "Venemous Lumpsucker" a cautionary tale about applying free market strategies to preventing extinction.
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Thu, 16 Nov 2023 - 556 - Why is there quantum uncertainty?
Daniel and Jorge wrestle with one of the fuzziest concepts in quantum mechanics
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Tue, 14 Nov 2023 - 555 - What did the early Universe sound like?
Daniel and Jorge take you back to the early Universe and the sound bubbles that seeded everything.
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Thu, 09 Nov 2023 - 554 - Can we settle space? Should we? Have we really thought this through?
Daniel talks to Kelly and Zach Weinersmith about whether humanity is ready to move into the stars.
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Tue, 07 Nov 2023 - 553 - What's the matter with matter in the Universe?
Daniel and Jorge dig into the history of matter, dark matter and dark energy, explaining how they used to have very different ratios.
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Thu, 02 Nov 2023 - 552 - Listener Questions 44: Deep questions from listeners like you!
Daniel and Jorge wrestle with the Earth's tilt, steampunk atoms and fundamental pixels of rad.
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Tue, 31 Oct 2023 - 551 - Which force(s) power the human senses?
Daniel and Katie talk about how we experience the Universe and what physics underlies our senses.
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Thu, 26 Oct 2023 - 550 - Could we see moons around exoplanets?
Daniel and Jorge are over the moon about the possibility of spotting alien moons.
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Tue, 24 Oct 2023 - 549 - Could we seed exoplanets with life?
Daniel and Kelly wrangle with the tricky science and ethics of sending microbes to distant worlds.
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Thu, 19 Oct 2023 - 548 - Do Black Holes Have Hair?
Daniel and Jorge wrestle with the hairy question of what's happening inside and on the surface of black holes.
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Tue, 17 Oct 2023 - 547 - Was the interstellar visitor oumuamua natural or artificial?
Daniel and Jorge talk about the claims that 'Oumuamua might have been alien space junk.
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Thu, 12 Oct 2023 - 546 - Could dark matter be making flashes of light?
Daniel and Jorge break down a new study that looks for dark matter using both gravity and light.
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Tue, 10 Oct 2023 - 545 - Where is all the missing matter?
Daniel and Jorge talk about the effort to track down all the quarks in the Universe.
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Thu, 05 Oct 2023 - 543 - How does gravity escape a black hole?
Daniel and Katie warp their minds around the question of what gravitational information really is and what we know about a black hole.
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Tue, 03 Oct 2023 - 542 - Listener Questions 43: Light, heat and vision
Daniel and Jorge answer questions from listeners like you! Send in your questions to questions@danielandjorge.com
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Thu, 28 Sep 2023 - 541 - Great, Big Questions about the Universe
Daniel and Jorge answer questions from young people about the Universe, to mark Jorge's new book!
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Tue, 26 Sep 2023 - 540 - How important is cosmic dust?
Daniel and Jorge dust off their knowledge of the tiny-but-mighty grains of space dust which help form our world and block our view of the cosmos.
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Thu, 21 Sep 2023 - 538 - Explain the Universe: Behind the Scenes
To mark the 500th episode, Daniel gives a tour of the podcast's history and production process, including candid interviews with the co-hosts, Sean Carroll and other podcasters.
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Tue, 19 Sep 2023 - 537 - How big is the smallest habitable planet?
Daniel and Kelly talk about what it would take to live away from Earth, and whether a small planet could host humanity.
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Thu, 14 Sep 2023 - 536 - Why do moving objects look shorter?
Daniel and Jorge wrestle with the weird consequences and hard questions of special relativity!
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Tue, 12 Sep 2023 - 535 - How do we measure the Higgs boson mass?
Daniel and Jorge talk about why the Higgs mass is such an important number and how physicists weigh such a fleeting particle.
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Thu, 07 Sep 2023 - 534 - Listener Questions 42: Life, the Universe and Ghosts!
Daniel and Jorge answer questions from listeners like you! Send your questions to questions@danielandjorge.com
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Tue, 05 Sep 2023 - 533 - Why do scientists do simulations?
Daniel and Jorge explain how simulation lets scientists answer new kinds of questions about the Universe.
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Thu, 31 Aug 2023 - 532 - Have we seen more or fewer gravitational waves than expected?
Daniel and Katie talk about what physicists expected when they turned on a new kind of ear for listening to the Universe.
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Tue, 29 Aug 2023 - 531 - Why is space so flat?
Daniel and Jorge talk about what it means for space to be curved, how we measure it and why the answer is a puzzle.
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Thu, 24 Aug 2023 - 530 - The Science Fiction Universe of "Meru" by SB Divya
Daniel and Kelly talk to the author of "Meru" about a future which blurs the line between humans and machines.
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Tue, 22 Aug 2023 - 529 - What is the maximum vacuum?
Daniel and Jorge talk about what is revealed if you empty space of all possible particles.
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Thu, 17 Aug 2023 - 528 - The Science Fiction Universe of "Orbital Cloud"
Daniel and Kelly talk to Tayio Fujii, author of "Orbital Cloud"
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Tue, 15 Aug 2023 - 527 - What does the center of the galaxy look like?
Daniel and Jorge turn their eyes to the center of the galactic action and give us a sense for where we are.
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Thu, 10 Aug 2023 - 526 - How fast can a black hole spin?
Daniel and Katie get their heads spinning as they spiral into the center of spinning black holes
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Tue, 08 Aug 2023 - 524 - How can we look for magnetic monopoles?
Daniel and Jorge talk about a particle with a pure magnetic charge and how to look for it using a cubic kilometer of ice.
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Thu, 03 Aug 2023 - 523 - How massive is a neutrino?
Daniel and Jorge talk about the mysterious mass of the neutrino and how we can measure it.
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Tue, 01 Aug 2023 - 522 - How can we keep solar panels clean on Mars?
Daniel and Kelly talk about how to keep solar panels bright and powerful when they far away on a dusty planet.
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Thu, 27 Jul 2023 - 521 - What is a non-Newtonian fluid?
Daniel and Jorge talk about the gooey physics of honey, gravity, asphalt and ketchup!
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Tue, 25 Jul 2023 - 520 - Listener Questions 41: Questions about the mass of the Universe, moons made of gas, and backyard blackholes.
Daniel and Jorge answer questions from listeners like you!
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Thu, 20 Jul 2023 - 519 - What everyone misunderstands about the Universe
Daniel talks to Zach Weinersmith about the most common misconceptions about our Universe.
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Tue, 18 Jul 2023 - 518 - How stable is the Earth's orbit?
Daniel and Jorge talk about whether we can expect the Earth to continue in its path forever, or if our days are numbered.
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Thu, 13 Jul 2023 - 517 - Do things get more massive the faster they move?
Daniel and Jorge talk about what happens when you start to move fast, and whether it makes sense to think about your mass growing.
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Tue, 11 Jul 2023 - 516 - How do planets get their moons?
Daniel and Jorge talk about how a planets gets its natural satellites and the stories that each one reveals.
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Thu, 06 Jul 2023 - 515 - Do all galaxies have central black holes?
Daniel and Jorge talk about whether galaxies have to have black holes at their hearts.
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Tue, 04 Jul 2023 - 514 - How to use the whole galaxy to hear huge gravitational waves
Daniel and Jorge break down the recent discovery of huge gravitational waves by NANOGrav, and what it means about supermassive black holes.
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Thu, 29 Jun 2023 - 513 - What drives the movement of Earth’s continents?
Daniel and Jorge explore the deep, violent history of the Earth's surface.
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Tue, 27 Jun 2023 - 512 - What happens if you explode a nuclear bomb in space?
Daniel and Katie touch on the explosive question of nuclear weapons and explain the impact of space-based explosions.
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Thu, 22 Jun 2023 - 511 - Listener Questions 40: Ways our Universe could end us
Daniel and Jorge answer questions from listeners about the dangers of our Universe and whether engineers could save us.
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Tue, 20 Jun 2023 - 510 - Could there be more than one theory of everything?
Daniel talks to philosopher Thomas Barrett about whether there could be multiple effective descriptions of our Universe
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Thu, 15 Jun 2023 - 509 - Why are some things transparent?
Daniel and Jorge try to see through the mysteries of transparency.
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Tue, 13 Jun 2023 - 508 - What is a superluminous supernova?
Daniel and Jorge talk about the super names for some of the most incredible events in astronomy.
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Thu, 08 Jun 2023 - 507 - What color is the Sun?
Daniel and Katie talk about the amazing physics, chemistry and biology that determines how we see the Sun.
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Tue, 06 Jun 2023 - 506 - Why does the Universe have antiparticles?
Daniel and Jorge talk about whether the Universe would make sense without antimatter.
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Thu, 01 Jun 2023 - 505 - Could we reveal quantum gravity in a tabletop experiment?
Daniel and Jorge talk about how clever experiments might provide a breakthrough in the effort to understand the quantum nature of space-time.
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Tue, 30 May 2023 - 504 - What is tidal locking?
Daniel and Kelly talk about how the gravitational dance of the Earth and Moon, and other objects in and out of our Solar System.
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Thu, 25 May 2023 - 503 - What's the best way to measure the expansion of the Universe?
Daniel and Jorge talk about how to use different cosmic rulers to measure the expansion of the Universe.
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Tue, 23 May 2023
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