View full lesson: http://ed.ted.com/lessons/how-do-we-measure-distances-in-space-yuan-sen-ting
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.
Lesson by Yuan-Sen Ting, animation by TED-Ed.
Tagged under: Yuan-Sen Ting,astronomy,Jeremiah Dickey,space, measure distances space,standard candle,light year,stars,galaxies,trigonometic parallax,TED,TED-Ed,TED Ed,TEDEducation
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