- A park ranger will present a planetarian movie on “Black Holes.” 10 a.m. Free. Rock Creek Nature Center, 5200 Glover Road NW. 202-895-6000.
- 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.
- A park ranger will lead a planetarium program about “Fire and Ice: Strange Moons of the Solar System” (for ages 7 and older). 4 p.m. Free. Rock Creek Nature Center, 5200 Glover Road NW. 202-895-6070.
Classes and workshops
- The Kadampa Meditation Center will host a weekly class on meditation. 10 a.m. $6 to $12. Kadampa Meditation Center, 1787 Columbia Road NW. 202-986-2257.
- Local yoga instructors Alia Peera and Amy Mitchell will present “Sunday Serenity: Yoga in the East Park.” 10 to 11 a.m. $5 donation suggested; reservations encouraged. Dumbarton House, 2715 Q St. NW. dumbartonhouse.org. The program will continue weekly through Aug. 27.
- Dumbarton House will host an “English Country Dance” workshop. 1 to 3 p.m. $5. Bellevue Ballroom, Dumbarton House, 2715 Q St. NW. 202-337-2288.
- The National Building Museum will host a performance as part of its summer concert series. 2 to 3 p.m. Free. National Building Museum, 401 F St. NW. 202-272-2448.
- Vocalist Aisha Kahlil and guitarist David Cole will present “Water and Nature,” featuring fluid improvisations, enchanting beats and cool Brazilian jazz interludes. 2 p.m. Free. Anacostia Art Center, 1231 Good Hope Road SE. eastriverjazz.net.
- Participants in the National Symphony Orchestra’s Summer Music Institute — a program that draws students ages 15 to 20 from across the United States and other countries — will perform works by Brahms and Tchaikovsky. 6 p.m. Free. Concert Hall, Kennedy Center. 202-467-4600.
- The YouthCUE National Honor Choir Concert will feature high school students from across the United States. 7:30 p.m. Free. Washington National Cathedral, Massachusetts and Wisconsin avenues NW. cathedral.org.
- The British rock band Ride will perform. 8 p.m. $35 to $38. Sixth & I Historic Synagogue, 600 I St. NW. 800-745-3000.
Discussions and lectures
- Melvin A. Goodman, director of the National Security Project at the Center of International Policy, will discuss his book “Whistleblower at the CIA: An Insider’s Account of the Politics of Intelligence.” 1 p.m. Free. Politics and Prose, 5015 Connecticut Ave. NW. 202-364-1919.
- Roger Lawson, acting executive librarian and head of technical services at the National Gallery of Art, will discuss his department’s behind-the-scenes role in preserving the timeless works of art in the gallery’s collection and enhancing the visitor’s experience. 2 p.m. Free. East Building Auditorium, National Gallery of Art, 4th Street and Pennsylvania Avenue NW. 202-737-4215.
- Daniel R. Green, a defense fellow at the Washington Institute for Near East Policy and a lieutenant commander in the U.S. Navy Reserve, will discuss his book “In the Warlords’ Shadow: Special Operations Forces, the Afghans, and Their Fight Against the Taliban.” 3 p.m. Free. Politics and Prose, 5015 Connecticut Ave. NW. 202-364-1919.
- Joshua Green, a senior national correspondent for Bloomberg Businessweek, will discuss his book “Devil’s Bargain: Steve Bannon, Donald Trump, and the Storming of the Presidency.” 5 p.m. Free. Politics and Prose, 5015 Connecticut Ave. NW. 202-364-1919.
- Akosua Dardaine Edwards, founder of the Enabling Enterprise Project, will discuss her books “What Did I Learn Today?: Lessons on the Journey to Unconditional Self-Love” and “Nyabo (Madam) — Why Are You Here?” The Truth About Living in Service, Love, and Personal Power.” 6 to 8 p.m. Free. Langston Room, Busboys and Poets 14th & V, 2021 14th St. NW. 202-387-7638.
- The 22nd annual Made in Hong Kong Film Festival will feature Johnnie To’s 2016 thriller “Three,” about a neurosurgeon who must treat a gangster with a bullet lodged in his head, at 1 p.m.; and Ho Yuhang’s action movie “Mrs. K,” about a retired assassin living comfortably as a housewife until a former criminal associate re-enters her life, at 3:30 p.m. Free. Warner Bros. Theater, National Museum of American History, Constitution Avenue between 12th and 14th streets NW. 202-633-1000.
- “Cinéma de la révolution: America Films Eighteenth-Century France” will feature James Ivory’s 1995 movie “Jefferson in Paris,” about Thomas Jefferson’s nascent friendship with painter Maria Cosway, his growing intimacy with Sally Hemings, his difficulties with daughter Patsy, and his response to events leading to the French Revolution. 4 p.m. Free. East Building Auditorium, National Gallery of Art, 4th Street and Pennsylvania Avenue NW. 202-737-4215.
- Busboys and Poets will present Kamasi Hill’s documentary “Born in the Struggle,” about the sons and daughters of 1960s and 1970s radicals. 5 to 7 p.m. Free. Busboys and Poets Brookland, 625 Monroe St. NE. 202-636-7230
- The Joaquin Miller Poetry Series will feature readings by poets Phillip B. Williams and Joseph Ross, as well as an open mic segment. 3 to 5 p.m. Free. Rock Creek Nature Center, 5200 Glover Road NW. 703-820-8113.