Doubt Cast on Existence of Potentially Habitable Planet Gliese 581g

Doubts have been raised over whether the newfound possible alien planet Gliese 581g actually exists.

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URL: http://feedproxy.google.com/~r/spaceheadlines/~3/tZ1CHflh3o4/doubt-cast-habitable-alien-planet-gliese-581g-101012.html