From: Larry Klaes (firstname.lastname@example.org)
Date: Fri May 11 2001 - 13:30:57 PDT
* Fifth Worst Mass Extinction Linked to Asteroid Impact
They call them the Big Five -- a handful of unfathomable mass extinctions over the past 500 million years, each estimated to have obliterated somewhere between 50 and 96 percent of all species on the planet.
* It's Time to Seed Life on Mars, Scientist Says
It's been nearly 25 years since NASA sent biological experiments to Mars. Chris McKay, a planetary scientist at NASA's Ames Research Center and a member of the NASA Astrobiology Institute, thinks it's time to try again.
* Venus Revealed: New Telescope Peeks Beneath the Clouds
A new radio telescope has combined with another to bounce radar pulses off the surface of Venus, revealing a mountain there taller than Mount Everest and showing off the capabilities of a new observational program.
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