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Join Exploratorium geologist Eric Muller on a tour of world-famous geological features to be found in the national parkland just north of the Golden Gate bridge.

On March 29, 2006, a total solar eclipse occurred as the moon moved directly between the earth and the sun. The moon's shadow fell on the earth, first darkening the eastern tip of Brazil, and then moved across the Atlantic Ocean to make landfall in Ghana, Africa. It continued moving northeast through Nigeria, Niger, Libya, Egypt, across the Mediterranean and into Turkey, where an Exploratorium team was waiting.

A telescope-only view of the 2006 eclipse, as seen from Turkey.

Searching for extraterrestrial life: is it telephoning aliens or really complicated math equations? Join Senior Scientist Paul Doherty, NASA Ames planetary Scientist Eric Wegryn, and SETI's Senior Scientist Seth Shostak as they explore how to find planets that could support life. How many of these planets are there? How did we find them? When will we know for sure?

Professor Anders Barany, Deputy Director of the Nobel Museum and former secretary of the physics committee that awards the Nobel Prize, speaks about how laureates are chosen and celebrated. (Audio-only webcast)

At the age of eleven, Peter D'Amato ordered a Venus flytrap from Famous Monsters magazine; thus began a lifetime of cultivating carnivorous plants. His small apartment became an urban jungle, so he moved to Sebastopol, California, the home of California Carnivores, where he grows and sells hundreds of other-worldly plants whose traps range from those small enough to capture protozoa to those big enough to contain a rodent.

On the occasion of Hubble's 15th birthday we unveil two spectacular mosaic images from the telescope, discuss the amazing accomplishments of Hubble during the past 15 years, and look at some of the images from space.

Paul Doherty and Eric Wegryn explore the latest photos of Titan, Saturn’s largest moon, taken from only 750 miles away by the Huygens probe.

In this archived program from 2003, join us for a conversation with Pulitzer-prize winning biologist E. O. Wilson, who introduced the term biodiversity to describe the interlocking dependence and diversity of organisms in sustaining life in biological communities.

Join us as NASA releases the first images from the Hubble Telescope's new camera, NICMOS (the Near Infrared Camera and Multi-Object Spectrometer). We'll discuss the significance and beauty of these pictures of our galaxy with the NICMOS' Lead Scientist, Keith Noll.