How an eclipse works

Air Date: Aug 21, 2017 12:00 AM ET

The dean of science at York University talks to us about the basics of how an eclipse works. He's viewing the eclipse with a group of astronomers, in the best place of all: the "path of totality" in a small town in Idaho.

Weather

Tuesday

Chance of showers

6°C

Wednesday

A mix of sun and cloud

-4°C

Thursday

A mix of sun and cloud

-5°C

Friday

A mix of sun and cloud

1°C

Saturday

Chance of showers

5°C

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