It’s Thursday, July 30, and here are five things to know in Montgomery County. Purple Line Sidewalk Proposal: At 6:30 p.m., the county transportation department will have an online public meeting to talk about a Purple Line Bicycle and Pedestrian Priority Area sidewalk proposal for the Manchester Place station in Silver Spring. Bethesda Outdoor Concert: At 6:30 p.m., The Kensington Bethesda assisted living facility will host Mystic Ya Ya for a free public concert at Westbard Square (5400 Westbard Ave.) See more here4. ICYMI: On Sunday, a NASA astronaut who calls Potomac his hometown returned to Earth after eight months in space. For the latest news and events in Montgomery County, stay with MyMCMedia.