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<rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:podcast="https://podcastindex.org/namespace/1.0" xmlns:media="http://search.yahoo.com/mrss/" version="2.0"><channel><title>Where Physics Ends</title><link>https://www.spreaker.com/podcast/where-physics-ends--7279373</link><description><![CDATA[What happens when the laws of physics reach their limits?Where Physics Ends is a science documentary podcast exploring the places where our best theories begin to break down. From black hole interiors and the first moments of the universe to dark matter, quantum gravity, neutron stars, cosmic horizons, and the deepest puzzles of space and time, each episode examines a question that modern physics has not fully solved.Rather than treating the unknown as speculation, the show follows the evidence. We look at what scientists can observe, what current theories predict, where those theories disagree, and what future discoveries could change our understanding of reality.This is a podcast about the frontier between established knowledge and the unanswered questions beyond it.]]></description><atom:link href="https://www.spreaker.com/show/7279373/episodes/feed" rel="self" type="application/rss+xml"/><language>en</language><category>Astronomy</category><copyright>Copyright Lola Mosley</copyright><image><url>https://d3wo5wojvuv7l.cloudfront.net/t_rss_itunes_square_1400/images.spreaker.com/original/8eb9277ce0bd115b8c2c8397685df318.jpg</url><title>Where Physics Ends</title><link>https://www.spreaker.com/podcast/where-physics-ends--7279373</link></image><lastBuildDate>Tue, 08 Sep 2026 09:13:46 +0000</lastBuildDate><itunes:author>Lola Mosley</itunes:author><itunes:owner><itunes:name>Lola Mosley</itunes:name><itunes:email>feeds@spreaker.com</itunes:email></itunes:owner><itunes:image href="https://d3wo5wojvuv7l.cloudfront.net/t_rss_itunes_square_1400/images.spreaker.com/original/8eb9277ce0bd115b8c2c8397685df318.jpg"/><itunes:subtitle>What happens when the laws of physics reach their limits?Where Physics Ends is a science documentary podcast exploring the places where our best theories begin to break down. From black hole interiors and the first moments of the universe to dark...</itunes:subtitle><itunes:summary><![CDATA[What happens when the laws of physics reach their limits?Where Physics Ends is a science documentary podcast exploring the places where our best theories begin to break down. From black hole interiors and the first moments of the universe to dark matter, quantum gravity, neutron stars, cosmic horizons, and the deepest puzzles of space and time, each episode examines a question that modern physics has not fully solved.Rather than treating the unknown as speculation, the show follows the evidence. We look at what scientists can observe, what current theories predict, where those theories disagree, and what future discoveries could change our understanding of reality.This is a podcast about the frontier between established knowledge and the unanswered questions beyond it.]]></itunes:summary><itunes:category text="Science"><itunes:category text="Astronomy"/></itunes:category><itunes:explicit>false</itunes:explicit><podcast:guid>f70a19ff-ff3c-54f1-95bc-428d6218810b</podcast:guid><itunes:type>episodic</itunes:type><item><title>The Matter That Should Not Be Possible</title><link>https://www.spreaker.com/episode/the-matter-that-should-not-be-possible--74353817</link><description><![CDATA[A neutron star compresses more mass than the Sun into a sphere roughly the size of a city.<br />But calling it a ball of neutrons hides the real mystery.<br />Deep inside, matter is pushed beyond anything we can reproduce in a laboratory. Atomic nuclei disappear as familiar structures. Particles are forced into extraordinary densities. And somewhere beneath the crust, physicists are no longer certain what matter actually becomes.<br />Does the core remain dominated by neutrons?<br />Do new particles appear?<br />Do protons and neutrons themselves dissolve into quark matter?<br />In this episode of Where Physics Ends, we enter the densest observable matter in the universe and ask a surprisingly difficult question.<br />What is a neutron star actually made of?<br />]]></description><guid isPermaLink="false">https://api.spreaker.com/episode/74353817</guid><pubDate>Thu, 20 Aug 2026 02:20:35 +0000</pubDate><enclosure url="https://api.spreaker.com/download/episode/74353817/the_matter_that_should_not_be_possible_091101.mp3" length="12531296" type="audio/mpeg"/><podcast:transcript url="https://transcription.spreaker.com/starship/579a8da1-b3f9-4848-8833-59ef277c6e54/579a8da1-b3f9-4848-8833-59ef277c6e54.srt" type="application/x-subrip" language="en"/><podcast:transcript url="https://transcription.spreaker.com/starship/579a8da1-b3f9-4848-8833-59ef277c6e54/579a8da1-b3f9-4848-8833-59ef277c6e54.txt" type="text/plain" language="en"/><podcast:transcript url="https://transcription.spreaker.com/starship/579a8da1-b3f9-4848-8833-59ef277c6e54/579a8da1-b3f9-4848-8833-59ef277c6e54.vtt" type="text/vtt" language="en"/><itunes:author>Lola Mosley</itunes:author><itunes:subtitle>A neutron star compresses more mass than the Sun into a sphere roughly the size of a city.
But calling it a ball of neutrons hides the real mystery.
Deep inside, matter is pushed beyond anything we can reproduce in a laboratory. Atomic nuclei...</itunes:subtitle><itunes:summary><![CDATA[A neutron star compresses more mass than the Sun into a sphere roughly the size of a city.<br />But calling it a ball of neutrons hides the real mystery.<br />Deep inside, matter is pushed beyond anything we can reproduce in a laboratory. Atomic nuclei disappear as familiar structures. Particles are forced into extraordinary densities. And somewhere beneath the crust, physicists are no longer certain what matter actually becomes.<br />Does the core remain dominated by neutrons?<br />Do new particles appear?<br />Do protons and neutrons themselves dissolve into quark matter?<br />In this episode of Where Physics Ends, we enter the densest observable matter in the universe and ask a surprisingly difficult question.<br />What is a neutron star actually made of?<br />]]></itunes:summary><itunes:duration>784</itunes:duration><itunes:keywords>astrophysics,chromodynamics,dense,equation,extreme,gravitational,matter,merger,neutron,nicer,nuclear,of,physics,pulsars,quantum,quark,star,stars,state,waves</itunes:keywords><itunes:explicit>false</itunes:explicit><itunes:image href="https://d3wo5wojvuv7l.cloudfront.net/t_rss_itunes_square_1400/images.spreaker.com/original/8eb9277ce0bd115b8c2c8397685df318.jpg"/><itunes:episodeType>full</itunes:episodeType></item><item><title>The First Moment We Cannot Explain</title><link>https://www.spreaker.com/episode/the-first-moment-we-cannot-explain--74353299</link><description><![CDATA[Run the history of the universe backward and the cosmos becomes hotter, denser, and more extreme.<br />Eventually, our equations reach a boundary known as the Planck regime, where gravity and quantum physics can no longer be treated separately. Beyond that frontier, familiar ideas about space, time, and even the beginning of the universe become uncertain.<br />Did time truly begin with the Big Bang? Was there something before it? Or does the word before stop making physical sense?<br />In this episode of Where Physics Ends, we travel toward the earliest moment our current theories can approach and discover why the beginning of everything remains one of physics greatest unfinished problems.<br />]]></description><guid isPermaLink="false">https://api.spreaker.com/episode/74353299</guid><pubDate>Thu, 20 Aug 2026 02:10:45 +0000</pubDate><enclosure url="https://api.spreaker.com/download/episode/74353299/the_first_moment_we_cannot_explain_090525.mp3" length="13422803" type="audio/mpeg"/><podcast:transcript url="https://transcription.spreaker.com/starship/20c23c6c-db3c-4cac-b7e5-c003a37d15fd/20c23c6c-db3c-4cac-b7e5-c003a37d15fd.srt" type="application/x-subrip" language="en"/><podcast:transcript url="https://transcription.spreaker.com/starship/20c23c6c-db3c-4cac-b7e5-c003a37d15fd/20c23c6c-db3c-4cac-b7e5-c003a37d15fd.txt" type="text/plain" language="en"/><podcast:transcript url="https://transcription.spreaker.com/starship/20c23c6c-db3c-4cac-b7e5-c003a37d15fd/20c23c6c-db3c-4cac-b7e5-c003a37d15fd.vtt" type="text/vtt" language="en"/><itunes:author>Lola Mosley</itunes:author><itunes:subtitle>Run the history of the universe backward and the cosmos becomes hotter, denser, and more extreme.
Eventually, our equations reach a boundary known as the Planck regime, where gravity and quantum physics can no longer be treated separately. Beyond that...</itunes:subtitle><itunes:summary><![CDATA[Run the history of the universe backward and the cosmos becomes hotter, denser, and more extreme.<br />Eventually, our equations reach a boundary known as the Planck regime, where gravity and quantum physics can no longer be treated separately. Beyond that frontier, familiar ideas about space, time, and even the beginning of the universe become uncertain.<br />Did time truly begin with the Big Bang? Was there something before it? Or does the word before stop making physical sense?<br />In this episode of Where Physics Ends, we travel toward the earliest moment our current theories can approach and discover why the beginning of everything remains one of physics greatest unfinished problems.<br />]]></itunes:summary><itunes:duration>839</itunes:duration><itunes:keywords>astronomy,bang,big,cosmology,early,general,gravity,inflation,of,origin,physics,planck,quantum,relativity,singularity,spacetime,time,universe</itunes:keywords><itunes:explicit>false</itunes:explicit><itunes:image href="https://d3wo5wojvuv7l.cloudfront.net/t_rss_itunes_square_1400/images.spreaker.com/original/8eb9277ce0bd115b8c2c8397685df318.jpg"/><itunes:episodeType>full</itunes:episodeType></item><item><title>Inside a Black Hole, Where Einstein’s Physics Ends</title><link>https://www.spreaker.com/episode/inside-a-black-hole-where-einstein-s-physics-ends--74352966</link><description><![CDATA[Black holes are often described as places where the laws of physics break down. But that is not quite true. At the event horizon, Einstein’s theory of general relativity can still describe what happens remarkably well.<br />The real problem lies deeper inside.<br />Follow the journey beyond the event horizon toward the singularity, a destination predicted by general relativity where spacetime itself reaches a mathematical limit. Is the singularity a real place in nature, or is it evidence that one of our greatest theories is incomplete?<br />This is the first journey into Where Physics Ends.<br />]]></description><guid isPermaLink="false">https://api.spreaker.com/episode/74352966</guid><pubDate>Thu, 20 Aug 2026 02:05:10 +0000</pubDate><enclosure url="https://api.spreaker.com/download/episode/74352966/inside_a_black_hole_where_einstein_s_physics_ends_090122.mp3" length="8277307" type="audio/mpeg"/><podcast:transcript url="https://transcription.spreaker.com/starship/bdee5e9c-7e0c-4b5c-8148-2f7c19c2f360/bdee5e9c-7e0c-4b5c-8148-2f7c19c2f360.srt" type="application/x-subrip" language="en"/><podcast:transcript url="https://transcription.spreaker.com/starship/bdee5e9c-7e0c-4b5c-8148-2f7c19c2f360/bdee5e9c-7e0c-4b5c-8148-2f7c19c2f360.txt" type="text/plain" language="en"/><podcast:transcript url="https://transcription.spreaker.com/starship/bdee5e9c-7e0c-4b5c-8148-2f7c19c2f360/bdee5e9c-7e0c-4b5c-8148-2f7c19c2f360.vtt" type="text/vtt" language="en"/><itunes:author>Lola Mosley</itunes:author><itunes:subtitle>Black holes are often described as places where the laws of physics break down. But that is not quite true. At the event horizon, Einstein’s theory of general relativity can still describe what happens remarkably well.
The real problem lies deeper...</itunes:subtitle><itunes:summary><![CDATA[Black holes are often described as places where the laws of physics break down. But that is not quite true. At the event horizon, Einstein’s theory of general relativity can still describe what happens remarkably well.<br />The real problem lies deeper inside.<br />Follow the journey beyond the event horizon toward the singularity, a destination predicted by general relativity where spacetime itself reaches a mathematical limit. Is the singularity a real place in nature, or is it evidence that one of our greatest theories is incomplete?<br />This is the first journey into Where Physics Ends.<br />]]></itunes:summary><itunes:duration>518</itunes:duration><itunes:keywords>albert,astrophysics,black,cosmology,einstein,event,extreme,general,gravity,hole,holes,horizon,mysteries,physics,quantum,relativity,singularity,space,spacetime,universe</itunes:keywords><itunes:explicit>false</itunes:explicit><itunes:image href="https://d3wo5wojvuv7l.cloudfront.net/t_rss_itunes_square_1400/images.spreaker.com/original/8eb9277ce0bd115b8c2c8397685df318.jpg"/><itunes:episodeType>full</itunes:episodeType></item></channel></rss>
