The Universe is: Expanding, cooling, and dark. It starts with a bang! #Cosmology Science writer, astrophysicist, science communicator & NASA columnist.

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Co-Founder and CEO at @Coinbase. Increasing economic freedom in the world. Join us: https://www.coinbase.com/careers

tech and productivity writer. bylines: @venturebeat, @makeuseof, @motherboard, @theweek, @technobuffalo, @inc and others.

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