On the night of September 7 into the 8th, the Moon will shift into a bizarre, unnatural red. A total lunar eclipse—the longest since 2022—will take over the sky for 82 straight minutes of full eclipse, with over five hours of visible changes for much of the world.

Roughly 6.2 billion people will be able to watch the totality from beginning to end. The rest will catch at least part of it, unless they’re in North or South America, where daylight blocks the view. If you’re in Australia, Asia, Europe, or Africa, all you need to do is step outside and look up.

This kind of eclipse happens when the Earth passes directly between the Sun and the Moon, casting a full shadow. Most of the Sun’s light is blocked. The red wavelengths, which travel farther through Earth’s atmosphere, bend toward the M

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