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A penguin exhibit opens at the Florida theme park
Astronauts investigate a leak at the International Space Station
An aircraft takes off for a cross-country flight—with no fuel required
Long-extinct species are not quite back, but scientists may soon be able to re-create the creatures. Should they?
NASA images reveal a massive hurricane on Saturn’s north pole
A new study says it may be as simple as making a fist
¿Tiene on océano profundo en una de las lunas de Júpiter todos los ingredientes para la vida?
Students show off their winning projects at the third annual White House Science Fair
Conservationists are working to stop the killing of elephants for their tusks
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