A telescope will soon allow astronomers to probe the atmosphere of Earthlike exoplanets for signs of life. To prepare, astronomer Lisa Kaltenegger and her team are modeling the atmospheric fingerprints for hundreds of potential alien worlds.
The unfortunate thing about all of this is that even if scientists do discover some sort of intelligent life light years away, we wont be able to communicate with them. We'll know that they are there (or were there what will be seeing happened ages ago) but that's about it.
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