Celebrate Astronomy Day--learn more about viewing the skies with telescopes. Volunteers from the Northern Colorado Astronomical Society will be available at 7 p.m. to show you their telescopes, or help you learn how to use your own. Skygazing begins around 8:30 p.m. See and discover fun facts about the moon, Jupiter, and the spring sky. Dress warmly and bring something to sit on. Free. No registration required.