Have you ever gotten lost in a new place? Chances are you used a map to find your way. Archaeologists use maps to find their way around an excavation site—but first they have to draw them.
Astrophysicists are discovering new extrasolar planets—those outside our Solar System—almost daily. NASA's Spitzer Space Telescope (originally called SIRTF, or the Space Infrared Telescope Facility) and AMNH's Lyot Project Coronograph are two of the many technologies uncovering the attributes and evolution of these faraway worlds. The techniques employed by these instruments may one day help answer one of astronomy's reigning mysteries: do any extrasolar planets host life?
The feature video relates scientists' hopes for the Spitzer Space Telescope before its launch in 2003. It also gives a firsthand look into the making of the Lyot Project. The feature essays share how these two remarkable technologies are making progress in their goals to seek and understand extrasolar planets.
If protecting the world's animals and plants is one of your goals, then you need to meet these OLogists. Find out where Ismael, Keally, Marco, and Eleanor have followed their curiosity.
Dive into marine biology with Gabriela, Gwyneth, Luke, and Melanie. You'll travel from the west coast of Africa to the north coast of Ireland, meeting sea birds, seals, and lots of fish.
Do you dig the Earth? If so, you'll want to meet Arjun, Diana, Ruthmabel, and Ed. From volcanoes to deep sea vents, find out where these OLogists' interests have taken them.
How well grounded is your knowledge of our planet? Test your Earth science knowledge with this interactive quiz. Then, examine your faults—and the rights answers.
From any place on Earth, a compass will always point north. But do you know why? Explore the inner workings of this tiny magnet by building one—and then testing it in your neighborhood.
Want to take a close look at the layers that make up our solid Earth? Cook up a model that's good enough to eat—from the spice drop inner core to the thin chocolate crust.
Why collect rocks? Because every rock has a story to tell about how Earth, and life on it, has changed over time. Learn how to create a collection that rocks!
No matter where you find mineral salt—on your table or at the beach—you'll see its unique cube-shaped crystals. Take a sweet look at the crystal patterns and compositions of minerals.