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Lycoming College invites the Williamsport community to enjoy free shows in its Detwiler Planetarium. The shows, which are part of Williamsport First Friday, begin at 6:30 p.m. and 7:15 p.m. and are open to the public. Free tickets are available that evening starting at 5 p.m. outside the planetarium. Seating is first come, first seated. The planetarium is located in the Lynn Science Center on the corner of Washington Boulevard and Mulberry Street.