At 3:07 a.m. E.T. Tuesday, the moon will show the bright red blush of an eclipse, a celestial phenomenon explained by TIME science editor Jeffrey Kluger here. Starting at 2 a.m. E.T., watch live coverage of the celestial event above hosted by Slooh observatory director Paul Cox and Slooh astronomer Bob Berman, who will be reporting live from Prescott Observatory in Prescott, Ariz.
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