Tonight’s total lunar eclipse, vis­i­ble from West­ern Europe and Africa to the Rocky Moun­tains, will be the last one until 2010. The moon will enter the Earth’s umbra at 8:43pm EST and will enter total eclipse at 10:01pm EST, where it will remain for 51 min­utes, until 10:52pm EST. The moon with then leave the Earth’s umbra at 12:09am EST on Thurs­day morn­ing. Total lunar eclipses last longer in total­ity than total solar eclipses because the Earth is larger than the moon, so its umbra is much larger than the moon’s, and the moon, being small, takes longer to pass through [ . . . ]

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