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July/August 2001

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On the cover: Features as small as 3 km are visible in this radar image of Venus. Areas of higher elevation are lighter in color; the tan and white areas are highlands. NASA's Magellan spacecraft mapped over 98 percent of Venus' surface from 1990 to 1994.

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July/August 2001
The clouds of lovely Venus hide its scarred face from peering telescopes, but radar reveals a complex surface covered with over 100 volcanoes. Scientists are using these radar images to map lava flows and decipher the origin of the planet's intricate plains. In the most recent issue of StarDate, planetary geologist James R. Zimbelman of the National Air & Space Museum describes his research to uncover the secrets of our enigmatic, yet beguiling sister planet.

Also in this issue, we bring you "Shooting the Moon and Stars," from materials scientist M. Susan Barger. She chronicles the mid-19th century mission of astronomers and photographers to convince the public of the usefulness of both expensive modern telescopes and the new Daguerreotype imaging process. These professionals labored together in observatory domes to produce heavenly images.

Barger takes us from the invention of the Daguerreotype, through the arduous attempts to image the Moon using the Great Refractor at Harvard College Observatory, to the awards and accolades those pioneers eventually saw. Finally, she describes the recent revival of this unique imaging process.

  • Shooting the Moon and Stars 
  • Venus: Goddess of Lava

    »  News from the 2001 American Astronomical Society meeting in Pasadena, CA.

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