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In general relativity, white holes are just as mathematically plausible as black holes. Black holes are real; what about white holes?
Digital analyses of Enlightenment-era letters are teaching us a thing or two about Locke, Voltaire, and others.
An interview with Lisa Kaltenegger, the founding director of the Carl Sagan Institute, about the modern quest to answer an age-old question: "Are we alone in the cosmos?"
Admitting that we know little about our future selves can radically improve our decision-making.
From the earliest stages of the hot Big Bang (and even before) to our dark energy-dominated present, how and when did the Universe grow up?
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Some of you may be interested in Through the Keyhole, my ‘random thoughts’ blog where I put stuff not directly related to K-12 technology and/or leadership issues. Recent posts have […]