Air is the single reason Earth is the only known repository of life in the entire, vast universe. It is…

Air is the single reason Earth is the only known repository of life in the entire, vast universe. It is miraculous, generated by organisms. We basically shit in it, every day. Clean air *is* life itself. https://t.co/hkSHIDXcvH https://t.co/pe20mKXoZO