Visit the world-renowned Geophysical Institute, where scientists study everything from the center of the Earth to the center of the sun. Learn about the Alaska Satellite Facility's polar-orbiting satellites and the Alaska Volcano Observatory. Meet in the Elvey Building  lobby. Call 907-474-6166 for information, or email  uso@asf.alaska.edu. Reservations are required for groups of 10 or more.

• Tours start at 2:30 p.m. each Wednesday and run from June 5 – Aug. 21.