Human World Space

Why your GPS twinkles

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and

June 14, 2016

Bottom line: Dynamic bubbles of ionization in Earth’s upper atmosphere can cause GPS signals to “twinkle” like stars, affecting the quality of navigation on Earth below. New video from NASA.

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Posted

June 14, 2016

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Human World

Eleanor Imster

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About the Author:

Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. She and her husband live in Tennessee, where they enjoy guitar playing and singing. They have 2 grown sons.