Natural History Wanderings

Monday night to early Tuesday morning, April 5-6, 2010, the naked-eye star Zeta (ζ) Ophiuchi will be blocked for up to 8 seconds by a passing asteroid.  This is predicted to be the brightest event of an asteroid blocking a star ever seen in North America.  For more information: http://www.skyandtelescope.com/observing/highlights/89690067.html