Light seconds, light years, light centuries: How to measure extreme distances - Yuan-Sen Ting
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When we look at the sky, we have a flat, two-dimensional view. So how do astronomers figure the distances of stars and galaxies from Earth? Yuan-Sen Ting shows us how trigonometric parallaxes, standard candles and more help us determine the distance of objects several billion light years away from Earth.
Astronomers often talk about the early universe. Since time is directional and does not allow us to travel to the past, explain how it is possible to study the early universe.
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Meet The Creators
- Director Jeremiah Dickey
- Educator Yuan-Sen Ting, Gautham Narayan, Amali Vaz
- Narrator Addison Anderson
