Scientists propose a way to detect dangerous “mirror life” before it exists

Scientists have proposed what they believe is the first way to detect "mirror life," a hypothetical form of life built from molecules that are reversed versions of those found in living organisms on Earth.

Researchers from the University of Strathclyde and Durham University have developed a proposed detection technique that uses molecules capable of emitting light with distinct left and right-handed properties. By analyzing these light signals, scientists may eventually be able to distinguish conventional organisms from their mirror-image counterparts.

Although mirror life does not currently exist, some experts consider its potential creation a serious biological safety concern. These artificial organisms could behave in unpredictable ways when interacting with Earth's ecosystems and might evade certain natural defenses that protect people, animals, and plants.

The likelihood of mirror life emerging is considered low, but its possible consequences could be severe enough to justify developing detection methods in advance.