THURSDAY 5/3

NATIONAL SPACE DAY--Twenty million dollars gets you a visit to the international space station; $9.50 gets you a baking-soda rocket demonstration, a bunch of slides from the Hubble telescope, and the musings of former astronaut Dr. Bonnie Dunbar. Museum of Flight, 9404 E Marginal Way S, 764-5700, 10 am-9 pm, $9.50 (free 5-9 pm).

MITCH HEDBERG--Frequent Letterman guest Hedberg (who also wrote, directed, and starred in 1999's Los Enchiladas! and had a small role in Almost Famous as the Eagles' tour manager) wraps up two nights in the U-District. Giggles, 5220 Roosevelt Way NE, 526-5653, 8:30 and 10:30 pm, $12.

BASIC SELF-DEFENSE--Covering boundary-setting, de-escalation, striking and kicking, and fighting from the ground. This class is open to women only, and continues on Thursdays through June 7. Home Alive, 1400 18th Ave, 903-9747, 6-8 pm, $10-$50 (sliding scale).

FRIDAY 5/4

MUSICA DU BRASIL--The City Cantabile Choir, under the direction of Fred West, performs three evenings of Brazilian music, with the second half of each concert featuring samba dancers, drummers, and capoeira. Town Hall, 1119 Eighth Ave, 623-8632, 7:30 pm, $15. Also Sat May 5, 7:30 pm; Sun May 6, 7 pm.

TUESDAY 5/8

SEX TOYS FOR MEN--Author/pornographer/activist/educator Aubrey Hart Sparks demystifies the Swedish Suck-O-Lux and Peruvian Love Gun for the erotic benefit of Seattle's sexually adventurous men, and the men and women who want to insert things into them. Toys in Babeland, 707 E Pike St, 328-2914, 8 pm, $25.

NAVIGATING THE FESTIVAL MAZE--Devon Damonte, director of the New England Film and Video Festival, offers tips for penniless filmmakers on submitting work to festivals. Little Theatre, 608 19th Ave E, 329-2629, www.nwfilmforum.org, 6-9 pm, $60/$40 NWFF members.