When you think of your family's traditions and beliefs, what special objects come to mind? Would the meaning and value of these objects be clear to someone from another family or culture?
All the color photos of astronomical phenomena that we see in magazines and books begin as three separate images—one red, one green, and one blue. Explore how CCD cameras and their color filters work.
A 2-D map is a great guide here on Earth—and virtually worthless for finding your way around in outer space. Take a 3-D look at mapping our solar system and universe.
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 changes with your viewpoint. Take another look at the Big Dipper.
How long have humans been on Earth compared to the length of time dinosaurs roamed the planet? Gain a new understanding of time by mapping out Earth's history.
Explore your ancestral past and the 22nd-century possibilities of DNA research with this collection of kid-friendly titles selected for the Hall of Human Origins.
We owe our lives to gravity. It holds the atmosphere to Earth and keeps us all from falling off into space. Not to mention that without gravity, the stars and planets—including Earth—wouldn't even exist!
Here on Earth, we tend to take gravity for granted. Yet the astronauts aboard the Space Station need to learn how to do everything without it. Can you imagine shooting hoops in a "weightless" world?
Students in grades 3-8 can observe and learn about the carbon cycle in this experiment.
"Atmosphere," "biofuels," "carbon dioxide"—challenge students to spell out their climate change knowledge from A to Z.
Antarctica's winter runs from mid-February through late August. If you decide to stay, you're there for the duration—all aircraft traffic is stopped. Learn how research crews prepare to go it alone.
At the poles, it's possible to study sea ice that's 3,000 years old. Find out what scientists learn by cutting up ice cores and seeing the ice crystals' many different textures and colors.
Why does cold air rush out of a freezer when you open the door? How does it then move through a room? Experiment to learn the answers—and gain insight into the blustery winds of Antarctica.
This slideshow provides background information on the bighorn sheep and their habitat and breeding habits.
It all comes down to choosing the right outfit ... when you're dressing for an expedition to Antarctica. Do you know which fabrics would do the best job keeping you warm and dry?