For those of you who missed it, Dr. Ratra put on a wonderful talk about dark matter and energy today. The event was put on by the Prairie Astronomy Club who would welcome a talk from him anytime (or inertial reference frame…sorry..bad joke)..
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PASADENA, Calif. – NASA’s Mars Curiosity rover has used its full array of instruments to analyze Martian soil for the first time, and found a complex chemistry within the Martian soil. Water and sulfur and chlorine-containing substances, among other ingredients, showed up in samples Curiosity’s arm delivered to an analytical laboratory inside the rover.
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