Daniel and Kelly talk to authors about the science and storytelling of time-travel.

See omnystudio.com/listener for privacy information.

Daniel and Kelly talk to Dr. Jonathan McDowell about the kinds of junk you find in space, the problems it causes, and what we can do about it.

See omnystudio.com/listener for privacy information.

Daniel and Katie answer a question about building super duper long structures in space

See omnystudio.com/listener for privacy information.

Daniel and Kelly talk to Kathy Joseph about the true, twisted history of humanity's understanding of electromagnetism

See omnystudio.com/listener for privacy information.

Daniel and Kelly talk about how santa takes solves an NP-hard problem, how reindeer fly and glow, and the physics of lamps that defy time.

See omnystudio.com/listener for privacy information.

Daniel and Kelly answer questions from curious listeners, about big black holes, nuking hurricanes and the philosophy of photons.

See omnystudio.com/listener for privacy information.

Daniel and Kelly chat with Mary Roach about her latest book (Fuzz), and how she goes about getting the incredible stories that appear in her books.

See omnystudio.com/listener for privacy information.

Daniel and Kelly dig into the surprisingly controversial question of why airplanes stay in the air.

See omnystudio.com/listener for privacy information.