Harry Kroto, pictured in 1996, displays a model of the geodesic-shaped carbon molecules that he helped discover. Michael Scates/AP hide caption

itoggle caption Michael Scates/AP

The Cryptsporidium parasite emerges from the oocyst ready to infect. Muthgapatti Kandasamy & Boris Striepen/Courtesy of University of Georgia hide caption

itoggle caption Muthgapatti Kandasamy & Boris Striepen/Courtesy of University of Georgia

This is a calculated flood map for the city of St. Louis. Water depth goes from deep (dark blue) to shallow (white, light blue). Floodwater can come from the Illinois, Upper Mississippi and Missouri rivers, as well as from heavy local precipitation. Courtesy of Dag Lohmann/Katrisk hide caption

itoggle caption Courtesy of Dag Lohmann/Katrisk

The 200-inch Hale Telescope, a masterpiece of engineering at Caltech's Palomar Observatory, was the world's largest telescope until 1993. Scott Kardel/Palomar Observatory/Courtesy of Palomar Observatory/California Institute of Technology hide caption

itoggle caption Scott Kardel/Palomar Observatory/Courtesy of Palomar Observatory/California Institute of Technology

An artist's rendition of the HD 7924 planetary system — just 54 light-years away from Earth — shows newly discovered exoplanets c and d, which join Planet b. Karen Termaura, BJ Fulton/UH IfA hide caption

itoggle caption Karen Termaura, BJ Fulton/UH IfA

The Hooker 100-inch reflecting telescope at the Mount Wilson Observatory, just outside Los Angeles. Edwin Hubble's chair, on an elevating platform, is visible at left. A view from this scope first told Hubble our galaxy isn't the only one. Courtesy of The Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, Calif. hide caption

itoggle caption Courtesy of The Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, Calif.

Blaze Bioscience is commercially developing the "paint," which glows when exposed to near-infrared light. Courtesy of Blaze Bioscience hide caption

itoggle caption Courtesy of Blaze Bioscience

Smart phones contain a silicon chip inside the camera that might be used to detect rare, high energy particles from outer space. J. Yang/Courtesy of WIPAC hide caption

itoggle caption J. Yang/Courtesy of WIPAC

Safe and small: The credit-card-sized test for anthrax destroys the deadly bacteria after the test completes. Courtesy of Sandia Nation hide caption

itoggle caption Courtesy of Sandia Nation