From gazing at the sun and stars to learning the science behind “Star Wars,” Georgia Perimeter College will host a variety of free events to unleash your inner nerd as part of the 2015 Atlanta Science Festival March 21-28. The second annual science festival is a weeklong celebration of local science and technology that culminates with an all-day interactive Exploration Expo at Centennial Olympic Park.

Alpharetta Campus kicks off the week early Friday, March 20, with two events for astronomy wanna-be’s. Solar and regular telescopes will be set up in the parking lot from 10 a.m. to 10 p.m. to view the sun and the night sky. Stargazers also can take a photo of the sky through the telescope and email it to themselves. Alpharetta Campus is located at 3705 Brookside Parkway, Alpharetta.

If you’ve ever enjoyed the beat of a high school football half-time show but lived far away from the stadium, you may wonder just exactly how far that sound travels. Now you can learn about the relationship between sound waves and drums while listening to two high school drumlines during the “Soundwaves and Drumlines” event noon to 2 p.m. Saturday, March 21. The event will be in the gym of GPC’s Decatur Campus, 3251 Panthersville Road, Decatur.

Fans of the movie “Star Wars” can join the Dunwoody SPACE club and GPC astronomy and physics professor Jay Dunn to watch videos that explore the real solar system versus the fictional planets created for “Star Wars” and other sci-fi movies. Participants are invited to come dressed as their favorite Star Wars character. The event is from 6 to 7 p.m. Monday, March 23, at GPC’s Dunwoody Campus, NC1100 Auditorium, 2101 Womack Rd., Dunwoody.

Culture and science connect on Clarkston Campus, with the preview of the Theatre Arts Guild award-winning play, “An Experiment with an Air Pump,” by British playwright Shaelagh Stephenson. GPC theatre professor Sally Robertson will lead a discussion about theatre that uses math and science as its subject matter. The event is 1 to 3 p.m. Tuesday, March 24, in CL 1100, the JCLRC auditorium, 555 N. Indian Creek Road, Clarkston.

There are many more activities planned across the college.