The Pursuit of Serendipity

Whenever I hear the word 'serendipity,' I think of my old mentor Norman Eliason, professor of medieval studies at UNC-Chapel Hill. During my years of grad work, Dr. Eliason passed along habits of precision and an eye for detail that I've tried, not always successfully, to emulate. One day when he asked about my work habits, I told him that I preferred to work outside the library, checking out books I needed or making copies of relevant journal articles. I can still see him nodding slowly in his office chair, cigarette protruding from his hand, and I knew I'd said the wrong thing. "You need to be among the books," he said. "Use your free time to look around and you'll run into things in the stacks you never knew were there." I took his advice and he was right. Serendipity --chance discovery, usually when looking for something else -- worked. At least, it always has for me, but you have to put yourself in a place where discoveries are likely to be made. Image: Serendipitous discoveries...

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Galactic Dark Matter Modeled

I don't spend too much time worrying about the ultimate fate of the Earth as it interacts with a swollen red Sun some five billion years from now. My thought is that if any civilization is still on the planet in a billion years, it will have long since worked out how to exit when necessary (and it will be necessary a lot sooner than five billion years!), or maybe how to tweak planetary orbits to preserve our planet, if only as a choice historical site. Still less do I worry about the Milky Way being destroyed by a collision with one or more satellite galaxies, like the Large and Small Magellanic Clouds that move around the parent galaxy. So when I read that an Ohio State team led by Stelios Kazantzidis had shown via computer simulations that such a collision would leave the galaxy more or less intact, my real interest was in the implications of this work in terms of one of science's great mysteries -- the nature of dark matter. Have a look at the team's modeling of the dark matter...

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Charter

In Centauri Dreams, Paul Gilster looks at peer-reviewed research on deep space exploration, with an eye toward interstellar possibilities. For many years this site coordinated its efforts with the Tau Zero Foundation. It now serves as an independent forum for deep space news and ideas. In the logo above, the leftmost star is Alpha Centauri, a triple system closer than any other star, and a primary target for early interstellar probes. To its right is Beta Centauri (not a part of the Alpha Centauri system), with Beta, Gamma, Delta and Epsilon Crucis, stars in the Southern Cross, visible at the far right (image courtesy of Marco Lorenzi).

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