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Join photographer David Arnold as he talks about photographing climate change.

We talk to photographer John Weller, who spent the austral summer 2008 scuba diving under the ice in Antarctica.

In this zany competition teachers will have ten minutes to create a science activity from a special secret ingredient. This week: crayons!

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.

Founding Dean of the Architecture Program at California College of Arts and Crafts (CCAC), David Meckel began his career in the Eames Office in the 1970's. Focusing on the day to day experiences of working with Charles and Ray Eames, David will portray a day in the life of the office with the images, people, and idiosyncratic pleasures that made up the rich and dynamic environment that served as the laboratory for these two great designers.

Exploratorium staff Ron Hipschman and Robyn Higdon sum up the last five days of spacewalks, and show a couple of good-bye conferences with the shuttle astronauts.

Learn about the successful replacement of the Power Control Unit (PCU) and listen as we talk with Mark Clampin, part of the team that developed the Advanced Camera for Surveys scheduled for installation tonight.

A unique chance to watch the live progression of the making of a Hubble image! We'll select an image to follow over the course of the following webcasts, showing you the steps along the way as it goes from raw data to a full-color picture. And we'll talk with people who bring Hubble's fantastic images to the public. Part 2 of the previous program.

Dr. Paul Doherty scours the globe for the world's greatest science demonstrations. Here he partners with Dr. Gorazd Planinsic, frequent contributor to Physics Teacher magazine, active in international physics education, and illustrator of physics text books. Watch this webcast, follow the links to the 'recipes,' then try it yourself!

The Science Summer 2000 workshop explored the science of disco mirror balls, tie dye, lasers, and other things that made the 1970s so happening and far-out.