March 26 - The Galleries will close at 4PM. Last IMAX film is at 4PM.

All aboard! Rocky Mountain Express will propel you on a steam train journey through the breathtaking vistas of the Canadian Rockies, highlighting the adventure of building the nation’s first transcontinental railway....

The new digital show Cosmic Collisions launches you on a thrilling trip through space and time to explore the astronomical impacts that drive the dynamic and continuing evolution of the universe. From subatomic particles to the largest...

The iconic monarch butterfly is a true marvel of nature. It weighs less than a penny, yet it makes one of the longest migrations on Earth across a continent, with pinpoint navigational accuracy, to a secluded place it has never been. In...

The documentary adventure “To The Arctic” tells the ultimate tale of survival. Narrated by Oscar® winner Meryl Streep, the film takes audiences on a never-before-experienced journey into the lives of a mother polar bear and her twin seven-...









David Slattery has been volunteering at the Fleet since August 2010 and provided over 650 hours of service. He primarily volunteers as a Gallery Facilitator, occasionally runs demostrations for our guests and serves as a lead volunteer on our Robotics Team. He has been instrumental in figuring out how to operate Professor Fleet, our bikebot. And, thanks to his theater background, he has helped bring the Professor to life and shown other volunteers how to create their own "Professor" characters. David brings a positive attitude and a contagious enthusiasm to what we do at the Fleet, bringing out that same excitement in our guests. We greatly appreciate his spirit and commitment to the Fleet!
Meet David...
Thank you, David! Check back next month for a new Volunteer in the Gamma Ray.

Sandra Ambrosi has volunteered over 1000 hours at the Fleet since May 2011, primarily as a Museum Ambassador. She also helps as an Event Ambassador from time to time. Sandra makes each and every guest she encounters feel welcomed and enthusiastically reminds children to “Touch everything! Play hard!” She personifies our mission by creating a fun environment that encourages and inspires learning. Sandra is also one of the first to show each new volunteer the ropes, making sure they have a rewarding and enjoyable experience, as well, and feel confident in their role. She has keen observation skills and is always attentive to how our programs can be improved. We greatly value her input, energy and dedication to the Fleet!
Meet Sandra...
Thank you, Sandra!
Gamma rays have the smallest wavelengths and the most energy of any wave in the electromagnetic spectrum. They are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes. The volunteers we will highlight on this page have put so much energy and so much of themselves into their service at the Fleet; we figured if we were going to shine a light on them, it had better be a really awesome light. Learn more about gamma rays.