NASA’s asteroid mission to Apophis: Key for Earth’s defense
REx mission has an historic opportunity to closely observe the asteroid Apophis and improve our ability to defend against ...
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Underwater fossil bed discovered by collectors preserves rare slice of Florida's past
Fossil collectors in Florida have discovered an ancient sinkhole, now at the bottom of a river, which holds the remains of animals rarely seen in the state, including a type of giant armadillo, giant ...