Three decades after astronomer Carl Sagan suggested that Voyager 1 snap Earth's picture from billions of miles away -- resulting in the iconic Pale Blue Dot photograph - two astronomers now offer another unique cosmic perspective: Some exoplanets -- planets from beyond our own solar system - have a direct line of sight to observe Earth's biological qualities from far, far away.
from All Top News -- ScienceDaily https://ift.tt/3oaAjNw
Friday, October 23, 2020
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» Smile, wave: Some exoplanets may be able to see us, too
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