Penobscot Marine Museum will open its doors this winter with The Circus Comes to Town. A breathtaking model of hundreds of miniature circus figures performing under the Big Top, the Bex Bros. Circus is the centerpiece of the exhibit. Magnificent circus paintings, photography and circus memorabilia complete this exciting exhibition. Main Street Gallery, December 10, 11, 17, 18, 29 and 30, and January 7, 8, 14, 15, 21, 22, 28 and 29. Hours 11 a.m. to 4 p.m.

Commemorate the anniversary of the greatest engineering feat in modern history: the International Space Station. Learn about the station and build your own model from recycling materials. Also features storytime and aerospace demonstration stations. Visit www.nationalmuseum.af.mil for more information.

Celebrate Halloween by learning fun aerospace principles through Halloween-themed activities! Come dressed in your favorite costume. Also features storytime and aerospace demonstration stations. Visit www.nationalmuseum.af.mil for more information.

Tours, hands-on workshops and activities for home school students. Advanced registration required. Visit http://www.nationalmuseum.af.mil/education/homeschool/index.asp for more information.

Learn the basics of lighter than air flight. Also features storytime and aerospace demonstration stations. Visit www.nationalmuseum.af.mil for more information.

Commemorate National Aviation Day (and Orville Wright's birthday) by learning about aerospace technology and history from 1903 to 2012 and beyond. Also features storytime and aerospace demonstration stations. Visit www.nationalmuseum.af.mil for more information.

Commemorate a collection of July space anniversaries, from the X-15 to Apollo to Mars, by learning about rocketry and space flight. Also features storytime and aerospace demonstration stations. Visit www.nationalmuseum.af.mil for more information.

Students who have finished grades 2-3 will have high-flying fun as they examine flight through a series of aviation-oriented books and a variety of hands-on activities. Visit http://www.nationalmuseum.af.mil/education/camp/index.asp for more information.

Students who have finished grades 6-9 will have the opportunity to experience the exciting world of flight by building and flying a variety of paper and Styrofoam gliders as they progress to a large balsa and hardwood high performance hand-launch glider. Students will also have an opportunity to fly in a Piper PA-28 Warrior aircraft as part of the camp.

This beginning level aerospace camp is designed for students who have finished grades 4-6 and who have little or no background knowledge of the principles of flight. Campers will learn the basics about five different aspects of flight: airplanes, kites, hot air balloons, helicopters and rockets. Visit http://www.nationalmuseum.af.mil/education/camp/index.asp for more information.