On Physics Review

With our hydrogen masers, particle accelerators, astronomical observatories, mass spectrometers, laser interferometers, and gravitational wave detectors, we have never had better tools with which to seek a superior understanding of the cosmos.  On Physics is a reminder to use our original tool: our minds.

What is Life?

This might sound like a philosophical question, but I intend it more like a scientific question.  We’ve discussed this somewhat before, like in our post about the universe’s habitable zone, but I want to focus in a little closer on what life really is, on what makes one thing alive and one thing not alive, how we might go about defining the difference, and whether what we call life deserves the distinction we have hitherto applied.