What Is a Light Year?

Understanding Unfamiliar Units This activity gets students out of their desks to practice measuring and manipulating units in a fun, […]

meteors perseids

Meteor Shower Guide

What is a meteor? When is your best chance to see a meteor? Get the details in this brief guide. […]


Phenomena Video Gallery

What are phenomena? They’re observable, naturally occurring events that are everywhere. A sunset, your breath on a cold morning, and […]


3-D Imaging: The Mystery Unlocked

Seeing the Solar System in a New Dimension Moviegoers are demanding more from their sensory experience, and 3-D viewing has […]