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What if the first alien life we find is actually from Earth?
Humanity’s search for life beyond Earth is facing a troubling contradiction. As we explore Mars and distant worlds, evidence suggests our own biology may already be interfering with the answers we seek. This investigation follows how human technology could unintentionally compromise the discovery of extraterrestrial life.

• How planetary protection efforts may backfire
• Why microbial survival complicates life detection on Mars
• The risk of false positives in future missions
• Why scientists are shifting focus to distant exoplanets like Gliese 251c
• How the Solar Gravitational Lens allows observation without contamination

NASA enforces strict safeguards, but researchers remain divided. Some believe radiation sterilizes Mars completely. Others warn that subsurface niches could preserve Earth microbes for years.
If we cannot tell alien life apart from our own, the most important discovery in human history could be fundamentally flawed.
When we finally find life beyond Earth, how will we know it was never ours?

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