Up Next
Back to Show
It's Okay to Be Smart
Sunlight Is Way Older Than You Think. Here’s Why…
Season 8
Episode 4
If the sun instantly switched off like a light bulb–which can’t happen, by the way–then we wouldn’t know for almost 8 and a half minutes. Light travels at the fastest speed there is, but it still takes almost 500 seconds to get to Earth. But the most amazing thing about the sunlight we see is it’s actually SUPER old. How is that possible? Because of the physics and mathematics of random walks.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
7:46
Or… maybe the question of what is and isn’t a dinosaur goes deeper than we think?
13:39
No flying animal alive today comes close to their huge size.
13:44
Why do viruses like SARS-CoV-2 happen and why are they becoming more frequent?
9:57
Learn about this Nature Challenge.
2:13
Evolution has given us the gifts we need to survive this difficult time. Here's how.
10:52
Celebrating 30 years of the Hubble Space Telescope.
9:52
Let’s dig into our evolutionary past to try and find an answer.
13:12
Here’s the science of handwashing!
7:35
Stay informed. Stay cautious, but not scared.
12:19
Do the supposed advantages for springing forward and falling back hold up?
8:19
If humans are so smart, why are our babies so… un-smart?
6:28
How will we do a Green Revolution 2.0?