Around this black disc, a red glow will appear where the Sun was before, and this glow will turn the Moon's surface a warm red.
If NASA's current plan of sending astronauts back to the Moon actually transpires, then those astronauts will experience lunar eclipses typically once or twice a year.
But how can YOU see it best from Earth? Steinn suggests:
To see it in the US, hope for clear skies, and find high ground with unobstructed view to the east and look for the moon rising right at sunset.