On Sunday, January 28th, 2007, the renowned computer scientist Jim Gray was reported missing at sea. As of Thursday, Feb. 1st, the US Coast Guard has called off the search, having found no trace of the boat or any of its emergency equipment. Follow the story here.
Through the generous efforts of his friends, family, various communities and agencies, detailed satellite imagery has been made available for his last known whereabouts. You can help search this data using Amazon's Mechanical Turk service, here.
I was expecting to host Jim at the University of Chicago this coming Friday, and was looking forward to the stimulating and fun discussions that are the norm with this engaging and brilliant person. I'll be searching on Mechanical Turk; I hope that many others can do the same.