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Space Telescope Public Lecture Series Webcast - March 6, 2007
Hubble Space Telescope Public Lecture Series
at the Space Telescope Science Institute Speaker: Benne Holwerda, Space Telescope Science Institute Topic: Dust Grains in Island Universes Date: March 6, 2007 Time: 8 PM Place: Space Telescope Science Institute (STScI) Auditorium Price: Free admission and free parking Phone: 410-338-4700 Internet: http://hubblesite.org/about_us/public-talks.shtml Our Milky Way Galaxy is outlined not only by the countless stars in the night sky, but also by dark lanes where stars are strikingly few. These dark regions are dust clouds in our galaxy that dim, redden, and even block out the light from stars behind them. In a similar manner, dust clouds in a nearby galaxy will block light coming from more distant galaxies. Dr. Holwerda will present his research that uses the number of background galaxies in Hubble images to measure the dust in a foreground spiral galaxies. Like Sherlock Holmes' observation about the dog who didn't bark, this is an investigation of the galaxies that don't shine. Lectures on a diverse selection of cosmic topics are held the first Tuesday of every month at 8 PM in the STScI Auditorium, located at 3700 San Martin Drive on the Homewood campus of Johns Hopkins University. Admission is free and free parking is available in the lot across the street. This lecture will be webcast live. The recorded webcast will also be available for viewing online the following day. To view the webcast, you may need to download and install software. See the web site listed below in advance for details. Further information and directions are available by calling 410-338-4700 or on the internet at: http://hubblesite.org/about_us/public-talks.shtml |
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