On May 15, a rare Blood Moon will rise and it will be the longest total lunar eclipse Canadians have been able to see in 15 years. A total lunar eclipse happens when the sun, Earth, and moon line up so that the Earth blocks the sun and its shadow falls directly on the face of the moon.
During the lunar eclipse, the moon crosses into the Earth’s umbra, resulting in its bright white shine to turn into a darker, redder colour. Out of all the lunar eclipses, more than a third of them are total eclipses. According to NASA, the moon will cross into Earth’s shadow just after 10 p.m. on May 15.
To the human eye, during the partial lunar eclipse, it will appear as if parts of the moon are being swallowed by darkness. Once fully eclipsed, the moon’s darkness will become a visible reddish hue. The eclipse should be visible from coast to coast in Canada.
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