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Making fuel for exploring space

Since its 1977 launch, NASA's Voyager 1 spacecraft has travelled farther than any other piece of human technology. It is also the only human-made object to have entered interstellar space.

dateSep 09, 2015 in General Physics
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US adds two macaws to endangered species list

Poaching and habitat loss have landed the military macaw and the great green macaw, two birds typically found in Central and South America, on the US endangered species list, officials said Thursday.

dateOct 01, 2015 in Ecology
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