Photo by Nathan Castellanos.

HAMLET: The Washington Ballet premiers Stephen Mills’ Hamlet. John F. Kennedy Center for the Performing Arts – Eisenhower Theater (2700 F Street NW) 7:30 p.m. $25-110

DRINKING WITH THE STARS: At “Astronomy on Tap,” you can join a discussion about cosmic collisions, alien worlds, and gravitational waves. The Wonderland Ballroom (1101 Kenyon Street NW) 8-10 p.m. Free, but RSVP here.

DATING: Discuss the perils of dating with a criminologist over muffins and cookies at “Cupid’s Sting: Dating & Violence in D.C.” (1630 7th Street NW) 7 p.m. Free, but RSVP here.