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EarthA fresh look at Mount St. Helens
Nearly 30 years after the peak’s major eruption, recovery has just begun.
By Sid Perkins -
SpaceNewfound neighbor to solar system is a cool slacker
Researchers have found the closest brown dwarf to Earth and the coolest yet seen, raising the possibility that the nearest starlike body to the solar system may be a brown dwarf rather than a star.
By Ron Cowen -
Health & MedicineWalnuts may slow prostate cancer
More news from the American Chemical Society meeting.
By Janet Raloff -
Letters
Naked speed The article “Running barefoot cushions impact of forces on foot” (SN: 02/27/10, p.