
Daniel and Kelly’s Extraordinary Universe
Scientists Daniel and Kelly cannot stop talking about our amazing, wonderful, weird Universe! Each episode is a fun, easy-to-understand, and in-depth explanation of topics in science, from particles to black holes to moon colonies to ecosystems to parasites and everything else in the Universe!
Latest episodes

6 snips
Mar 7, 2024 • 53min
Is the Universe made of waves (Part 2)
Daniel talks to Matt Strassler about waves in the universe, challenging traditional particle concepts. They discuss standing vs. traveling waves, quantum fields, and the role of waves in mass and energy. The podcast delves into the interconnectedness of scientific principles and the profound implications of waves in quantum fields.

10 snips
Mar 5, 2024 • 44min
Is the Universe made of waves (Part 1)
Daniel and Matt discuss the concept of everything vibrating, delve into the impact of waves on life and decision-making, and explore the complexities of particles and waves in the quantum world. They also touch on the significance of the Higgs field in giving mass to particles and the historical evolution of understanding from Galileo to Einstein.

Feb 29, 2024 • 49min
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.See omnystudio.com/listener for privacy information.

8 snips
Feb 27, 2024 • 58min
Why is quantum gravity so hard?
Exploring the complexities of quantum gravity, the podcast delves into the challenges of unifying quantum mechanics and general relativity. Highlighting the disparities in scales between the two theories, it discusses the struggles in formulating a theory of quantum gravity. The conversation reflects on the historical context and the intricate relationship between mathematics and physics in advancing scientific theories.

Feb 22, 2024 • 46min
What is cold welding?
Exploring the concept of cold welding, how it merges metals without heat, and its potential applications in space. Delving into the history of welding, from blacksmithing to modern techniques. Discussing the atomic interactions in cold welding and its implications for non-metal materials. Highlighting the challenges of achieving cold welding in complex materials and space environments, with anecdotes from Soviet spacewalks and the Galileo probe. Emphasizing the role of cold welding in creating near-perfect bonds in nano scale fabrication and its impact on space engineering.

23 snips
Feb 20, 2024 • 57min
How is general relativity wrong?
Exploring why some believe Einstein was wrong about the nature of the Universe, questioning the validity of general relativity, debating the clash between quantum mechanics and general relativity, and speculating on the composition of the universe with humorous references.

Feb 15, 2024 • 57min
Listener Questions 48: Vacations, Destruction and Anti-matter Black Holes
This podcast episode covers a range of interesting topics including physics adventures, vacationing near white dwarf stars, destroying planets with a single particle, the immense energy required to break up the Earth, the ethics of particle colliders, antimatter and its relation to black holes, and the potential outcomes of colliding black holes and the interaction of matter and antimatter.

Feb 13, 2024 • 54min
Have interstellar meteors hit the Earth?
Exploring the impact of invasive species on ecosystems and the hypothetical scenario of advanced aliens invading Earth. Curiosity about samples from distant stars and exoplanets, and the possibility of interstellar meteors hitting Earth. Discussing the retrieval of fragments from a meteor potentially hitting the ocean, challenges involved, and skepticism from experts. Analyzing the evidence for interstellar meteorites, their composition, and isotopes. Exploring uncertainties surrounding the origin and accuracy of measurements. Discussing openness to new discoveries and anticipation for encounters with aliens.

Feb 8, 2024 • 51min
Can we see inside things using muons?
Daniel and Jorge discuss the strange properties of muons, their ability to penetrate matter, and their potential applications in seeing inside objects and discovering ancient artifacts. They explore the benefits of investing in basic research and the practical applications of particle physics, including using muons to improve various aspects of life. The chapter also delves into the transparency of different types of radiation and the creation and detection of muons. Plus, they touch on muons' role in geology and archaeology, and the hosts' social media presence.

Feb 6, 2024 • 46min
Why do some galaxies have bars?
The hosts explore the presence and significance of bars in galaxies, discussing their formation, longevity, and relationship to mass and time. They also delve into the role of dark matter in galaxy formation and its influence on the distribution and behavior of mass in galaxies. With their lighthearted banter, they connect galaxy bars to chocolate bars and highlight the characteristics of the universe.