In their search for alien life, scientists look for gases, or combinations of gases, that should only be present if they are produced by life.

Oxygen Can Exist Without Life

You have questions and A Moment of Science has answers. Short science videos and audio science podcasts provide the scientific story behind some of life\'s most perplexing mysteries. There\'s no need to be blinded by science. Explore it, have fun with it, but most of all learn from it. A Moment of Science is a production of WFIU Public Media from Indiana University in Bloomington, Indiana.

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Oxygen Can Exist Without Life

Oxygen Can Exist Without Life