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April 11, 2002 - Scientists behind NASA's Mars Odyssey orbiter are sharing some extraordinary new images with the public, images that could help determine whether life ever existed on the planet. Web surfers can get a daily, detailed image from the surface of Mars -- images of Martian dunes, lava flows, and layered rocks. The images, available at an Arizona State University Web site, come from a special camera aboard Odyssey called Themis. That's short for Thermal Emission Imaging System. Phil Christensen is professor of geological sciences at ASU, and principal investigator for the Themis project.
March 26, 2002 -
March 22, 2002 - How effective is online education? This is Future Tense for March 22nd. I'm Jon Gordon. Internet-based instruction promises to free us from the restrictions of geography. But a new study finds that you might learn more in a traditional classroom. Michigan State University students who took a virtual micro economics class from professor Carl Liedholm performed worse on exams- ten percent worse - than those who attended Liedholm's live micro economics class. Liedholm says his study took into account and controlled for differences in SAT scores and GPAs for the two kinds of class. (q/a)
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March 12, 2002 - When pornographers hijack Web sites... This is Future Tense for March 12th. I'm Jon Gordon. In order to operate a Web site, you must register the domain and pay an annual fee. Letting that registration expire is dangerous. Someone else can register the site, and replace its content with their own. When pornographers do it, it's called "porn-napping" and it's more common than you might think. Ken Leebow is author of the "300 Incredible" book series, which recommends Web sites. Some of the sites he's talked up in his books have been "porn-napped."