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Today at the Techonomy conference in Lake Tahoe, CA, the first panel featured Google CEO Eric Schmidt. As moderator David Kirkpatrick was introducing him, he rattled off a massive stat. Every two days now we create as much information as we did from the dawn of civilization up until 2003, according to Schmidt. That's something like five exabytes of data, he says. Let me repeat that: we create as much information in two days now as we did from the dawn of man through 2003.

Thomas J. Johnson, the creator of the modern Schmidt-Cassegrain telescope and the founder of Celestron, died early this morning (March 13, 2012), according to Celestron president and CEO Joe Lupica. Johnson was 89. He ranked among the most important figures shaping the last half century of amateur astronomy.