NPR News: Earth's 'Bigger, Older Cousin' Maybe Doesn't Even Exist

Earth's 'Bigger, Older Cousin' Maybe Doesn't Even Exist
In 2015, to great fanfare, NASA announced a planet discovery considered a milestone in the hunt for another Earth. But now some researchers say it's not clear that this planet actually exists.

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Làm đẹp Blog 247 May 11, 2018 at 11:44PM
Category Health & Science