Science, pop culture, and comedy collide on StarTalk! Astrophysicist and Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, celebrity guests, and scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up! Click here for more information.
How bright is the Earth from the moon? Neil deGrasse Tyson and Chuck Nice have fun with the sun’s reflectivity, discuss light pollution, and explore the electromagnetic light spectrum: how does sunscreen work?

What are the true limits of life, will we even recognize it when we see it? Neil deGrasse Tyson and comic co-host Chuck Nice explore the beginnings of life on Earth and what they might tell us about life everywhere else with astrobiologist and bacteriologist, Betül Kaçar.

What would you actually do if an alien showed up and asked to be taken to your leader? Neil deGrasse Tyson, Paul Mecurio, and astrophysicist Charles Liu explore fan questions about physics of near-light-speed travel, Dark Forest Theory from The Three Body Problem, and whether the universe itself might be conscious.

Are all the galaxies orbiting a superstructure in the middle of the universe? Neil deGrasse Tyson and comic co-host Chuck Nice are reaching into the grab bag to cover questions from absolute zero to the nature of gravity, and much much more.

Could the ingredients for life have arrived on asteroids? Neil deGrasse Tyson and comic co-host Chuck Nice unpack what the sample collected from asteroid Bennu is teaching us about the origins of life itself with Harold Connolly, geologist and mission scientist for OSIRIS-REx.

What if a microscopic alien lifeform was slowly eating our sun? Neil deGrasse Tyson and Chuck Nice sit down with Andy Weir, the bestselling author of Project Hail Mary, for a deep dive into designing aliens, science fiction, and science behind the book (and the movie.)

Is our universe an inevitable outcome of the laws of physics? Neil deGrasse Tyson and comic co-host Chuck Nice sit down with theoretical physicist Brian Greene to discuss the Many-Worlds Interpretation, the structure of the multiverse, levels of infinity, and respond to cosmic queries Neil couldn’t answer.

Where does the wind come from? What is a sonic boom? Neil deGrasse Tyson and Chuck Nice explain things you thought you knew about sonic booms, daily temperatures, and how wind works.

What are the main candidates for dark matter? Neil deGrasse Tyson and comic co-host Chuck Nice sit down with theoretical physicist Katherine Freese to tackle fan questions about dark matter, dark energy, and the dark universe at large.
