Educator Materials Space Shuttle Orbiter Did you know that satellites and the Space Shuttle don't need engines to power their orbits? See how Earth's gravitational pull bends... Interactive Journey to Deep Sea Vents Journey thousands of meters below sea level to examine the underwater geysers that spew hot, mineral-rich water from beneath the... Educator Materials 3-D Model of the Big Dipper In outer space, you might not recognize the Big Dipper. The stars that form this constellation exist in 3-D not 2-D—so the star pattern... Video The Ecology of Climate Change Visit Alaska's boreal forest to learn its role in Earth's climate. Educator Materials Make Your Own Weather Station Surrounding Earth is a layer of air, the atmosphere, where conditions are always changing. Try your hand at predicting weather patterns...   Tours     Journey to the Stars Educator's Guide   Article Coping With Changing Land The world relies on fresh water. Whether it is from the ground, sky, or glaciers, water sustains life. Article Plug Into the Sun The Sun is Earth's biggest power plant, sending more us more sunlight—solar power—than we could ever use.   Mars Spacecraft   Article Three Phases of Water We all know what water is—a clear, odorless, tasteless liquid. And we all know what water does—falls from the...   Mars Terraforming Interactive Tabletop Multi-user digital interactive table where visitors experience the stages for terraforming Mars. March 26, 2015