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Scotty Hendricks
Contributing Writer
Scotty Hendricks is a graduate student and long-time contributor to Big Think. He resides in Chicago.
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Oxygen is thought to be a biomarker for extraterrestrial life, but there are at least three different ways that a lifeless planet can produce it.
A study on charity finds that reminding people how nice it feels to give yields better results than appealing to altruism.