Eclipse. During a lunar eclipse, the Earth blocks out some of the sun's rays that would normally climb to the moon. Hear.

LOS ANGELES -- Attention skygazers: A fraction of the moon will touchy into the Earth's screen Saturday during a imperfect lunar downturn obvious in the western United States and Canada, the Pacific and eastern Asia. For West Coast viewers, the cover will come to pass in the pre-dawn hours. It will begin at 3:17 a.m. PDT and end about three hours later.

During a lunar eclipse, the Earth blocks out some of the sun's rays that would normally impress the moon. Slightly more than half of the moon's side will be shaded at the eclipse's peak. Saturday's incomplete obscure is a vernissage to the aggregate lunar shroud in December that will be discoverable throughout North America.

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