Transit logo
Exploratorium Logo
menu image map On November 15th, 1999, the western Hemisphere was treated to an astronomical event unseen for 25 years. On that day the tiny planet Mercury passed between us and the sun - an event known as a "transit". We webcast this historic event live on this website.

CLICK HERE to visit our gallery of streaming video and still images.



We'd like to thank the following organizations for their help
Lick Observatory
Lick Observatory
Orion Logo
Orion Telescopes
Communications, Inc.

Magnetic Image, Inc

1999 Exploratorium

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