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Astrobiology (general): October 2021


How do we understand the significance of new scientific results related to the search for life? When would we be able to say, "yes, extraterrestrial life has been found?"

When a physicist says that a theory is fine-tuned, they mean that it must make a suspiciously precise assumption in order to explain a certain observation.

Dear Astrobiology Community: We at NASA Astrobiology are continuing to prioritize thoughts and efforts in justice, equity, and belonging. We are seeking your inputs at this time on several fronts toward building momentum for growth, change, and action... for ourselves and our beloved community.