In her search for answers, this doctoral candidate mostly came up with more questions—a result that made her happy. Learn why she thinks the best part of discovery is following a trail of questions.
Journey to El Salvador for a visit to El Imposible, where you have to go on horseback or foot to see the entire forest. This national park has been called the "Jewel of Central America."
For 140 million years giant dinosaurs called sauropods roamed Earth. Help students investigate the success of the largest land animals ever with this practical and printable exhibition guide for educators.
Travel to Southern California to see surface evidence of the region's 300-plus faults that can produce earthquakes.
Qori Kalis is the largest outlet glacier of Peru's Quelccaya ice cap. See firsthand how it (like all tropical glacier ice) is melting because of global warming.
From the Great Blizzard of 1888 to the sinking of the Titanic, see how NAO may have affected history. Then look at how it may affect the future.
Long ago, people studied jellies by peering over the side of a boat and drawing the creatures as they bobbed nearby. See how much has changed since the 1800s.