- A park ranger will lead a planetarium program about the season’s brightest stars, planets and constellations (for ages 5 and older). 1 p.m. Free. Rock Creek Nature Center, 5200 Glover Road NW. 202-895-6070.
- Music Celebrations International will present the National Memorial Day Choral Festival 2018, featuring the U.S. Air Force Orchestra and a 300-voice choir. 3 p.m. Free. Concert Hall, Kennedy Center. 800-395-2036.
- The National Memorial Day Concert will feature the National Symphony Orchestra and Mary McCormack, John Corbett, Megan Hilty, Alfie Boe and Gary Sinise & The Lt. Dan Band, among other entertainers. Gates open at 5 p.m.; performance starts at 8 p.m. Free. West Lawn, U.S. Capitol. 202-416-8114.
- Guest organists Mark Thewes and Chad Pittman from Massillon, Ohio, will present an organ recital. 5:15 p.m. $10 donation suggested. Washington National Cathedral, Massachusetts and Wisconsin avenues NW. cathedral.org.
- “DCPS Music Festival Week” will feature a musical evening by the School Without Walls Stage Band and Concert Choir. 6 p.m. Free. Millennium Stage, Kennedy Center. 202-467-4600.
Discussions and lectures
- Author and architect Michael Curtis will lead a walking tour and discussion of his new book “Classical Architecture and Monuments of Washington, D.C.: A History & Guide.” 6 to 8 p.m. Free. Langston Room, Busboys and Poets 14th & V, 2021 14th St. NW. 202-387-7638.
- Michael Kevin Moore will discuss his book “Over 20 years of Disaster,” a hard-hitting, true depiction of the all-encompassing ills of the criminal lifestyle. 6 to 8 p.m. Free. Busboys and Poets Takoma, 235 Carroll St. NW. 202-726-0856.
- The Dakshina Dance Company will present a Bhangra dance lesson and performance in celebration of Asian Pacific American Heritage Month. 1 p.m. Free. Palisades Library, 4901 V St. NW. 202-282-3139.
- A National Service Commemorating Memorial Day will feature readings from Holy Scripture, musical offerings, and a sermon by the Rev. Teresa F. Terry, rector of Christ Church in Milford, Del. 11:15 a.m. Free. Washington National Cathedral, Massachusetts and Wisconsin avenues NW. cathedral.org.