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Voyage Program Director and astrophysicist Dr. Jeff Goldstein leads a tour for a Washington, DC class on Voyage Opening Day, October 17, 2001. A museum or science center can enlist the help of local area researchers and amateur astronomers to serve as tour guides for special occasions. These folks may have unique personal experiences conducting planetary research or observing the planets—which provide an exciting perspective to their tours. Dr. Goldstein, for instance, used a technique called infrared heterodyne spectroscopy to measure the high altitude global winds of Venus using a NASA telescope on Mauna Kea, Hawaii. Wind speeds of 2 mph could be detected on Venus, some tens of millions of miles away. |