In the beginning, the moon will enter only Earth’s outer shadow, called the penumbra. Any changes to the lunar surface will be subtle at first, Dr. Krupp said. At 4:11 a.m., the moon will fall completely within Earth’s inner umbral shadow and its full face will become a deep, dark red. The quirks of the moon’s orbit mean this total eclipse will be relatively short, lasting about 14 minutes and ending by 4:25 a.m. Pacific time. Some total lunar eclipses go for nearly an hour.

Source: New York Times May 25, 2021 06:56 UTC