Are There Other Planets Like Earth? 

Earth is unique in that it's the only planet we know of that can support life. But could there be another planet like ours somewhere far away?
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SOURCES:
www.nasa.gov/jpl/finding-anot...
exoplanets.nasa.gov/the-searc...
www.washingtonpost.com/video/...
www.nasa.gov/pdf/538085main_E...
www.nasa.gov/press-release/na...
www.popularmechanics.com/spac...