The Smithsonian's National Air and Space Museum hosts its annual "Air & Scare," from 2 to 8 p.m. Saturday, Oct. 29, at the Steven F. Udvar-Hazy Center. Visitors can join creepy space aliens, mysterious astronauts and ghostly pilots for safe, indoor trick-or-treating. With more than 30 activities there is something for everyone this year.

The youngest visitors will enjoy story times, dress-up stations, puppet shows, face-painting stations and hands-on activities. There will be special free screenings of cartoons in the IMAXTheater, plus free simulator rides and Halloween crafts. Parents and kids can pose for photos with Star Wars characters; for older children there will be a Teen and Tween Zone where they can pack a parachute, try their hand at a flight simulator or get a temporary tattoo. This year, for the first time, roving magicians will entertain the crowd.

Attendees are encouraged to come in their favorite flight-themed costume. Admission is free, but parking is $15. "Air & Scare" is made possible by Mars Snackfood US LLC.

The National Air and Space Museum is on the National Mall in Washington, D.C., at Sixth Street and Independence Avenue S.W. The museum’s Steven F. Udvar-Hazy Center is located in Chantilly, Va., near Washington Dulles International Airport. Both facilities are open daily from 10 a.m. until 5:30 p.m. (closed Dec. 25).