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Asteroids, comets on Omaha Science Cafe menu

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OMAHA, Neb. (AP) — Asteroids and comets will be the focus of an Omaha Science Cafe next week. Astronomy and physics instructor David Kriegler will discuss asteroids and comets beginning at 7 p.m. on Tuesday at the Slowdown, 729 N. 14th St. Kriegler is director of the Mallory Kountze Planetarium the University of Nebraska at Omaha. He's also developed online courses in physics and...