Planets more hospitable to life than Earth may already have been discovered

At least two dozen planets outside the solar system might be better for life than Earth

These planets are just a little older, a little wetter, a little warmer and a little larger than Earth is, researchers wrote Sept. 18 in the journal Astrobiology. All of these factors could mean that some of these planets are the best places to search for extraterrestrial life. 

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