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Smile, Wave: some exoplanets may be able to see Earth, too
Updated : 2 years, 3 months ago IST
Washington [US], October 21 (ANI): Three decades after Cornell 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 that some exoplane
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