What are the Northern Lights?

Question and Response #76 You asked… so we answered. What do carbon chains have to do with Greek words? How do MRIs make “3D pixels”? Is that pool smell actually chlorine? And wait… are birds blue, or is that just a trick of the light? This episode is a rapid-fire round of your q ...  Show more

#235 You’ve seen it a hundred times… but how does it actually work? Why do diapers change color when they’re wet? What kind of chemistry is happening in there? And how does something as simple as pee trigger such a dramatic color shift? Let’s talk acids, bases, color, and one sur ...  Show more

What is the Sun’s ecliptic? Neil deGrasse Tyson and comedian Chuck Nice break down the things you thought you knew about spheres in the universe, navigating the sky, and taking spacecraft out of orbit. 

NOTE: StarTalk+ Patrons can listen to this entire episode commercial ...

How do particles get mass? Neil deGrasse Tyson and comedian Chuck Nice discover squarks, sneutrinos, the Higgs boson, and whether dark matter has a particle with theoretical physicist Brian Greene. 

NOTE: StarTalk+ Patrons can listen to this entire episode commercial-fre ...

🌏 Get Our Exclusive NordVPN deal here ➼ https://nordvpn.com/stuartgary or use the checkout code STUARTGARY. It’s risk-free with Nord’s 30-day money-back guarantee! ✌

The Space Ne ...  Show more

Why is it so hard to get a picture of the Milky Way? How much of our galaxy have we mapped? What the heck is a "barred spiral" and what does that have to do with our core? I discuss these questions and more in today's Ask a Spaceman!