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Mark Washburn

Mark Washburn

Mark Washburn is a copyeditor for the Potpourri Group in Lowell, Massachusetts.

Latest Blog Posts

New Horizons One Earth Message

Posted 2015/04/24 02:08 CDT | 3 comments

The One Earth Message Project is going to send a message to the stars, and we invite members of the Planetary Society to join us in this historic endeavor.

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