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The 1903 Flyer was the first aircraft to make a successful, controllable, heavier-than-air flight. View the Flyer at different angles, the customized lightweight motor, and other related images for a complete picture of this breakthrough in aircraft…

Bats are members of the order Chiroptera, which is the second-largest order of living mammals. The geographic distribution of these flying mammals is tremendous as well, ranging from the limit of trees in the Northern Hemisphere to the southern tips…

Mitosis is the series of visible changes that occur in the nucleus and chromosomes of non-gamete-producing plant and animal cells as they divide. This Image Gallery exhibit depicts these events using state-of-the art microscopy and digital image…

From the inspiration of a toy helicoptor to glider tests at Kitty Hawk, North Carolina, view photographic documentation of the Wright Brothers' attempts at human flight and the stages toward a final successful aircraft. View launches and landings,…

The Mesozoic Era (about 250 to 65 million years ago) is a geologic time period that is known as the "Age of the Dinosaurs." However, paleontologists are finding more evidence of varied abundance of life during this age, tracing the common ancestor…

On December 26, 2004, a giant earthquake of magnitude 9.3 on the Richter scale was triggered in the deep ocean off western Indonesia. Simultaneously, a devastating tsunami was generated, causing destruction and loss of life around Indian Ocean…

NASA's twin rovers Spirit and Opportunity set down on the surface of Mars in January 2004. After meeting the 90-day goal, both rovers continued to dig, measure, observe, photograph, and explore the rough terrain. This Image Gallery showcases images…

The European Space Agency's (ESA) first mission to Mars, called Mars Express, was launched June 2, 2003 and entered an orbit around the planet by December 25. This Image Gallery exhibits a number of images of Mars captured by the High Resolution…