What is a Lunar Eclipse? | Lunar Eclipse 2019

Описание к видео What is a Lunar Eclipse? | Lunar Eclipse 2019

Join us on Facebook Live for a broadcast of the total lunar eclipse!
facebook.com/exploratorium/
January 20, 2019
7:30pm PDT

A total lunar eclipse occurs when the moon and the sun are on exact opposite sides of Earth. Although the moon is in Earth's shadow, some sunlight reaches the moon. The sunlight passes through Earth's atmosphere, which causes Earth’s atmosphere to filter out most of the blue light. This makes the moon appear red to people on Earth.

Credits: NASA's Goddard Space Flight Center

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