Quanta Science Podcast

Scientists have recently discovered scores of free-floating worlds that defy classification. The new observations have forced them to rethink their theories of star and planet formation. Read more at QuantaMagazine.org. Music is ?Light Gazing? by Andrew Langdon.

A new magnum opus posits the existence of a hidden mathematical link akin to the connection between electricity and magnetism. Read more at QuantaMagazine.org. Music is ?Clover 3? by Vibe Mountain.

To better understand how neural networks learn to simulate writing, researchers trained simpler versions on synthetic children?s stories. Read more at QuantaMagazine.org. Music is ?Thought Bot? by Audionautix.

Every species develops at its own unique tempo, leaving scientists to wonder what governs their timing. A suite of new findings suggests that cells use basic metabolic processes as clocks. Read more at QuantaMagazine.org. Music is ?Pulse? by Geographer.

The telescope conjecture gave mathematicians a handle on ways to map one sphere to another. Now that it has been disproved, the universe of shapes has exploded. Read more at QuantaMagazine.org. Music is ?Slow Burn? by Kevin MacLeod.

Giant black holes were supposed to be bit players in the early cosmic story. But recent James Webb Space Telescope observations are finding an unexpected abundance of the beasts. Read more at QuantaMagazine.org. Music is ?Light Gazing? by Andrew Langdon.

By watching ?minimal? cells regain the fitness they lost, researchers are testing whether a genome can be too simple to evolve. Read more at QuantaMagazine.org. Music is ?Hidden Agenda? by Kevin MacLeod.

New observations of a faraway rocky world that might have its own magnetic field could help astronomers understand the seemingly haphazard magnetic fields in our own solar system. Read more at QuantaMagazine.org. Music is ?Light Gazing? by Andrew Langdon.

Genetic elements called Mavericks that have some viral features could be responsible for the large-scale smuggling of DNA between species. Read more at QuantaMagazine.org. Music is ?Clover? by Vibe Mountain.

Quantum algorithms can find their way out of mazes exponentially faster than classical ones, at the cost of forgetting the paths they took. A new result suggests that the trade-off may be inevitable. Read more at QuantaMagazine.org. Music is ?Confusing Disco? by Birocratic.

In some deep subterranean aquifers, cells have a chemical trick for making oxygen that could sustain whole underground ecosystems. Read more at QuantaMagazine.org. Music is ?Pulse? by Geographer.

To buffer the brain against menaces in the blood, a dynamic, multi-tiered system of protection is built into the brain?s blood vessels. Read more at QuantaMagazine.org. Music is ?Good Times? by Patrick Patrikios.

New experiments show that the brain distinguishes between perceived and imagined mental images by checking whether they cross a ?reality threshold.? Read more at QuantaMagazine.org. Music is ?Who?s Using Who? by The Mini Vandals.

Today?s language models are more sophisticated than ever, but they still struggle with the concept of negation. That?s unlikely to change anytime soon. Read more at QuantaMagazine.org. Music is ?Hidden Agenda? by Kevin MacLeod.

The most comprehensive survey of how we share our microbiomes suggests a new way of thinking about the risks of developing some diseases that aren?t usually considered contagious. Read more at QuantaMagazine.org. Music is ?Transmission? by John Deley and the 41 Players.

Feelings of loneliness prompt changes in the brain that further isolate people from social contact. Read more at QuantaMagazine.org. Music is ?Slow Burn? by Kevin MacLeod.

The quantum energy teleportation protocol was proposed in 2008 and largely ignored. Now two independent experiments have shown that it works. Read more at QuantaMagazine.org. Music is ?Pulse? by Geographer.

The neocortex of our brain is the seat of our intellect. New data suggests that mammals created it with new types of cells that they developed only after their evolutionary split from reptiles. Read more at QuantaMagazine.org. Music is ?Pulse? by Geographer.

A wave of research improves reinforcement learning algorithms by pre-training them as if they were human. Read more at QuantaMagazine.org. Music is ?Quasi Motion? by Kevin MacLeod.

Theory has it that ?Population III? stars brought light to the cosmos. The James Webb Space Telescope may have just glimpsed them. Read more at QuantaMagazine.org. Music is ?Light Gazing? by Andrew Langdon.

Depression has often been blamed on low levels of serotonin in the brain. That answer is insufficient, but alternatives are coming into view and changing our understanding of the disease. Read more at QuantaMagazine.org. Music is ?Redwood Trail? by Audionautix.

Queen ants live far longer than genetically identical workers. Researchers are learning what their longevity secrets could mean for aging in other species. Read more at QuantaMagazine.org. Music is ?Good Times? by Patrick Patrikios.

The neural representations of a perceived image and the memory of it are almost the same. New work shows how and why they are different. Read more at QuantaMagazine.org. Music is ?Light Gazing? by Andrew Langdon.

If plaques of amyloid protein in the brain aren?t the root cause of Alzheimer?s disease, what is? Researchers investigating alternative possibilities have faced resistance from the biomedical establishment for decades, but intriguing theories about the role of defects in protein processing and the immune system have emerged. (Part 2 of two episodes.)

After decades in the shadow of the reigning model for Alzheimer?s disease, alternative explanations are finally getting the attention they deserve. Read more at QuantaMagazine.org. Music is ?Redwood Trail? by Audionautix.

An energy-efficient chip called NeuRRAM fixes an old design flaw to run large-scale AI algorithms on smaller devices, reaching the same accuracy as wasteful digital computers. Read more at QuantaMagazine.org. Music is ?Cast of Pods? by Doug Maxwell.

Supergenes that lock inherited traits together are widespread in nature. Recent work shows that their blend of genetic benefits and risks for species can be complex. Read more at QuantaMagazine.org. Music is ?Chee Zee Jungle – Primal Drive? by Kevin MacLeod.

A recent gamma-ray burst known as the BOAT ? ?brightest of all time? ? appears to have produced a high-energy particle that shouldn?t exist. For some, dark matter provides the explanation. Read more at QuantaMagazine.org. Music is ?Pulse? by Geographer.

The positively charged particle at the heart of the atom is an object of unspeakable complexity, one that changes its appearance depending on how it is probed. Read more at QuantaMagazine.org. Music is ?Light Gazing? by Andrew Langdon.

A new atomic-scale experiment all but settles the origin of the strong form of superconductivity seen in cuprate crystals, confirming a 35-year-old theory. Read more at QuantaMagazine.org. Music is ?Quasi Motion? by Kevin MacLeod.

Robots can surpass the limitations on how high and far animals can jump, but their success only underscores nature?s ingenuity in making the most of what?s available. Read more at QuantaMagazine.org. Music is ?Pixel Peeker Polka? by Kevin MacLeod.

When the brain encodes memories as positive or negative, one molecule determines which way they will go. Read more at QuantaMagazine.org. Music is ?Retro? by Wayne Jones.

Eric Larson and Isabel Vogt have solved the interpolation problem ? a centuries-old question about some of the most basic objects in geometry. Some credit goes to the chalkboard in their living room. Read more at QuantaMagazine.org. Music is ?Good Times? by Patrick Patrikios.

The key to understanding the origin and fate of the universe may be a more complete understanding of the vacuum. Read more at QuantaMagazine.org. Music is ?Pulse? by Geographer.

Partnerships between engineers and biologists have begun to reveal how birds evolved their superb maneuverability. Read more at QuantaMagazine.org. Music is ?Running Out? by Patrick Patrikios.

Structural studies of the robust material called sporopollenin reveal how it made plants hardy enough to reproduce on dry land. Read more at QuantaMagazine.org. Music is ?Redwood Trail? by Audionautix.

Protein buildups like those seen around neurons in Alzheimer?s, Parkinson?s and other brain diseases occur in all aging cells, a new study suggests. Learning their significance may reveal new strategies for treating age-related diseases. Read more at QuantaMagazine.org. Music is ?Aimless Amos? by Rondo Brothers.

Neuroscientists uncovered an energy-saving mode in vision-system neurons that works at the cost of being able to see fine-grained details. Read more at QuantaMagazine.org. Music is ?Unanswered Questions? by Kevin MacLeod.

Computer scientists can now solve a decades-old problem in practically the time it takes to write it down. Read more at quantamagazine.org. Music is ?Aimless Amos? by Rondo Brothers.

Jared Duker Lichtman, 26, has proved a longstanding conjecture relating prime numbers to a broad class of ?primitive? sets. To his adviser, it came as a ?complete shock.? Read more at quantamagazine.org. Music is ?Thought Bot? by Audionautix.

The second law of thermodynamics is among the most sacred in all of science, but it has always rested on 19th century arguments about probability. New arguments trace its true source to the flows of quantum information. Read more at quantamagazine.org. Music is ?Pulse? by Geographer.

Robots are about to venture into the sunless depths of lunar craters to investigate ancient water ice trapped there, while remote studies find hints about how water arrives on rocky worlds. Read more and explore infographics at quantamagazine.org.

For centuries, mathematicians have tried to prove that Euler?s fluid equations can produce nonsensical answers. A new approach to machine learning has researchers betting that ?blowup? is near. Read more at quantamagazine.org. Music is ?Pulse? by Geographer.

The existence of secure cryptography depends on one of the oldest questions in computational complexity. Read more at QuantaMagazine.org. Music is ?Transmission? by John Deley and the 41 Players.

Dopamine, a neurochemical often associated with reward behavior, also seems to help organize precisely when the brain initiates movements. It?s the latest revelation about the power of neuromodulators. Read more at quantamagazine.org. Music is ?Pulse? by Geographer.

Biomechanical interactions, rather than neurons, control the movements of one of the simplest animals. The discovery offers a glimpse into how animal behavior worked before neurons evolved.

The post This Animal?s Behavior Is Mechanically Programmed first appeared in Quanta Magazine.

Music is ?Running Out? by Patrick Patrikios.

Dwarf galaxies weren?t supposed to have big black holes. Their surprise discovery has revealed clues about how the universe?s biggest black holes could have formed. Read more at QuantaMagazine.org. Music is ?Light Gazing? by Andrew Langdon.

Physicists are reexamining a longstanding assumption: that big stuff consists of smaller stuff.

The post A Deepening Crisis Forces Physicists to Rethink Structure of Nature?s Laws first appeared on Quanta Magazine

Researchers have mapped hundreds of semantic categories to the tiny bits of the cortex that represent them in our thoughts and perceptions. What they discovered might change our view of memory.

The post New Map of Meaning in the Brain Changes Ideas About Memory first appeared on Quanta Magazine

Two teams have shown how quantum approaches can solve problems faster than classical computers, bringing physics and computer science closer together.

The post Machine Learning Gets a Quantum Speedup first appeared on Quanta Magazine