Second-grade students in Joleen Smith’s class watch a tour through the universe in the ExploraDome at Jefferson Elementary School in Winona, Minn. on March 6.
The portable planetarium gave students a chance to view Mars, constellations and the Milky Way galaxy. (Andrew Link/Winona Daily News via Associated Press)

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Picture of the Day 28 April: Joleen Smith?s class in the portable planetarium | Things News…