Jun 8, 2009 | 15
What is now part of Lake Huron's obscured floor became a dry land bridge between modern-day Presque Isle, Mich., and Point Clark, Ontario when lake levels dipped some 7,500 to 10,000 years ago. But could it have been a rich hunting ground for Paleo-Indians?
Previous wisdom has held that "most [sites] are presumed lost forever beneath the lakes"—which were carved out and filled in by receding glaciers about 10,000 years ago—note the authors of a new study, published today in Proceedings of the National Academy of Sciences, which has found traces of what appear to be stone structures, hunting blinds, dwelling sites and caribou drive lanes hidden under the mussels and algae at the bottom of the lake.
May 8, 2009 | 1
The White House yesterday announced that it will convene a 10-member independent panel to thoroughly review NASA's plans for human spaceflight. The announcement calls into doubt the agency's current cornerstones for manned missions, including the planned replacement for the soon-to-be-retired space shuttle and the stated goal of returning humans to the moon by 2020.
In a teleconference with reporters today, the panel's chair, former Lockheed Martin CEO Norman Augustine, gave few hints as to the future of manned spaceflight in the U.S., saying that his group's mission was simply to "take a fresh look and go where the facts are and basically call it the way we see it."
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