
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

Jan 2, 2024 • 49min
What is a symmetron?
Daniel and Jorge talk about creative ways to explain the accelerating expansion of the Universe. See omnystudio.com/listener for privacy information.

Dec 28, 2023 • 44min
Does hot or cold water freeze faster?
Daniel and Jorge discuss the intriguing question of whether hot or cold water freezes faster. They explore the complexities of the freezing process, including factors like crystallization, pressure, evaporation, and impurities. The podcast also touches on temperature inertia, factors affecting freezing rates, and the mysteries of the universe.

Dec 26, 2023 • 47min
Listener Questions 46: Mountains, ether and time!
Daniel and Jorge answer questions about reviving old theories, building tall mountains, and passing time.See omnystudio.com/listener for privacy information.

Dec 21, 2023 • 42min
What is the electrical charge of the moon?
Daniel and Jorge talk about whether the moon is positive, negative or neutral!See omnystudio.com/listener for privacy information.

Dec 19, 2023 • 46min
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.See omnystudio.com/listener for privacy information.

Dec 14, 2023 • 50min
What shapes can galaxies take?
Delve into the weird and wacky shapes of galaxies and the cosmic story they tell. Learn about the initial state of galaxies as a homogeneous gas cloud and how they evolve through the coming together of stars and gas clouds. Explore the range of sizes, from smaller to larger galaxies, and how our understanding has evolved with more observations. Discover the distinctions between spiral and elliptical galaxies, and how elliptical galaxies form through mergers. Explore the wide variety of shapes that galaxies can take due to factors like black holes and galaxy collisions.

Dec 12, 2023 • 49min
What’s the difference between inertial and gravitational mass?
Daniel and Jorge discuss the difference between inertial and gravitational mass, exploring their historical perspective and theoretical explanations. They explain how objects with different masses fall at the same speed and delve into Einstein's geometrical explanation in general relativity. The chapter also touches on concepts like pseudo gravity, black holes, and the ever-evolving story of physics.

Dec 7, 2023 • 48min
Has our solar system lost any planets?
Daniel and Jorge discuss the possibility of lost planets in our solar system, exploring the evolution of our understanding of planets and scientific models. They delve into the formation of gas giants and search for kicked-out planets. They also touch on the concept of Earth being ejected from the solar system and a lighthearted banter about a hypothetical white chocolate gas planet.

Dec 5, 2023 • 42min
Are there galaxies without dark matter?
The podcast discusses dark matter's prevalence in the universe and its mysterious nature. They explore how dark matter shapes the cosmic web and its role in galaxy formation. The hosts also touch on the possibility of galaxies existing without dark matter and the challenges in identifying them. Overall, the podcast delves into the concept of dark matter and its significance in our understanding of the universe.

Nov 30, 2023 • 49min
Does quantum mechanics conserve energy?
The podcast explores the concept of energy conservation in quantum mechanics and the ongoing debates surrounding its applicability. It discusses the challenges and different perspectives on measuring and understanding energy at the quantum level, including the impact of measuring photon's energy on overall energy. The chapter also examines different interpretations of quantum mechanics, including the multiverse theory and its implications on energy conservation.