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An asteroid, 8.5 meters in length and 3.5 meters wide, passed only 3,600 kilometers above southern Argentina. Scientists followed the asteroid, and its route was calculated, so its close but not dangerous visit by earth was known.

 

Photo by: https://pixabay.com/photos/asteroid-comet-meteorite-3628185/

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The new single-celled creatures

New single-celled creatures belonging to a whole new branch in the evolutionary tree were discovered. The creatures were divided into two groups called Nibbleridia and

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