Melissa K. Nelson (Turtle Mountain Chippewa) Ph.D. is an Indigenous ecologist and award-winning scholar-activist and media-maker. She is a professor of Indigenous Sustainability at Arizona State ...

In order to create a shadow, you need three things: light, something blocking the light, and a surface for the shadow to fall on. A shadow is an area where light is being blocked. You see your shadow ...

Make a truth teller for light. Turn an old CD into a spectroscope to analyze light—you may be surprised by what you see. Try pointing your CD spectroscope at the fluorescent light in your room, sunlit ...

A spinning 3D printed sculpture becomes a mesmerizing animation under a strobe light.

Pier 15 (Embarcadero at Green Street) San Francisco, CA 94111 415.528.4444 Contact Us ...

Since joining the Exploratorium in June 2025, Beth has been working closely with the CEO and the Institutional Advancement team to lead the museum’s fundraising strategy, advance annual and campaign ...

Watch old pennies turn bright and shiny — right before your eyes!