After nearly 70 years of searching, humanity has found no confirmed evidence of extraterrestrial life—only potential biosignatures in a Martian rock, disputed chemistry 124 light-years away, and thousands of UAP reports that may have nothing to do with aliens

After nearly 70 years of searching, humanity has found no confirmed evidence of extraterrestrial life—only potential biosignatures in a Martian rock, disputed chemistry 124 light-years away, and thousands of UAP reports that may have nothing to do with aliens.

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