Astrobiologists Detect a Signature of Life Remotely. Don’t get too Excited, Though, it was With a Helicopter Here on Earth

Chirality is a word normally found in biological textbooks that will occasionally pop up in the astronomy community, usually when discussing potential biosignatures.  Typically the term is explained by analogy with left and right hands – how the molecules are curved in one specific way or another, similarly to how human hands are formed either as left or right.  These two curvatures of the molecules are mirror images of each other, but not exactly the same.  Until recently, detection of chirality has focused on in situ measurements, such as those on Mars where molecules can be sampled directly.  Now, however, a team led by Drs. Lucas Patty and Jonas Kühn at the University of Bern, has managed to detect chirality remotely using some impressive new technology.

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