A food safety researcher explains another way to know what’s too old to eat.
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The Green New Deal is an ambitious attempt to fight climate change, but is it destined to hit the political skids?
With SETI’s search for extraterrestrial life running on all cylinders again, two questions must be raised: How do we make contact? And how do we make meaningful contact? Big Think asked Bill Nye, aka, ‘The Science Guy,’ who heads The Planetary Society.