142E-154-100 Years of Data
Soon it will be possible to study changes in the Universe which have occurred over the past 100 years.
Photo: By Harvard College Observatory - Harvard College Observatory, Public Domain, https://commons.wikimedia.org/w/index.php?curid=5280391
Photo: By Harvard College Observatory - Harvard College Observatory, Public Domain, https://commons.wikimedia.org/w/index.php?curid=5280391
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