Things You Thought You Knew – Is Everything Light?

StarTalk Radio

Scientist, Nasa, Neil Degrasse Tyson, Climate Science, Earth Science, Nature, Astronomy, Science, Multiverse, Spacetime, Astrophysicist, Space, Education, Cosmos, Astronomer, Startalk, Quantum Physics, Physics, Universe, Astrophysics, Star Talk

4.6 • 14.9K Ratings

🗓️ 12 May 2026

⏱️ 43 minutes

🔗️ Recording | iTunes | RSS

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Summary

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?

Transcript

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0:00.0	Coming up on StarTalks, things you thought you knew.
0:04.0	Three topics of immense interest to me, maybe even to you.
0:09.0	We're going to talk about albedo, followed by light pollution,
0:15.0	and ending with the electromagnetic spectrum.
0:19.0	Be there.
0:24.1	Welcome to StarTalk.
0:29.2	Your place in the universe where science and pop culture collide.
0:33.0	StarTalk begins right now.
0:36.1	Chuck, I got one for you.
0:37.0	All righty. I'm ready. One of my favorite words. All righty.
0:38.1	I'm ready.
0:40.1	One of my favorite words.
0:40.7	Okay.
0:42.4	Albedo.
0:43.7	All right.
0:44.9	Now, what language is that?
0:48.8	The language of science.
0:49.5	Really?
0:51.3	Albedo.
0:53.9	Okay, first of all, it sounds like a scientist. Not a scientist. Albedo. Hey, how you doing? I'm albedo. Okay, first of all, it sounds like a scientist, not a scientist.
0:56.0	Hey, how you know what?
0:58.0	I'm albedo.
	...

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