Couple plants two million trees over twenty years
When photographer Sebastião Ribeiro Salgado returned home to his family's farm in Brazil with his wife Lélia Deluiz Wanick Salgado, they found...
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Chemistry and Technology
Space and Astronomy
The night sky has played an important role in travel, building, and mythology since humans first entered the world. Sailors...
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Ever since we started investigating Mars with spacecraft back in the early 1960s, investigators have been on the lookout for...
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As the Apollo 13 disaster happened, only nine months after this event, NASA decided to try again for Apollo 14....
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