July 23 – 24
Learn the secrets of bubbles at the 6th Annual Bubble Days at Baltimore’s Maryland Science Center. Go to www.mdsci.org
July 27
Explore the science behind athletics from basketball and cycling to ballet’s toe balancing, in Portland, Ore. Ages 21+. See www.omsi.edu/afterdark
July 30
Stargaze with Smithsonian and amateur astronomers near Paris, Va. Go to www.nasm.si.edu/events
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