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The biological diversity of algae helps produce oxygen in aquatic ecosystems like lakes.
The "Flume Room" at the University of Michigan is used to assess biodiversity in streams.
Scientists conduct a stream experiment to track biodiversity in aquatic ecosystems.
Video type: Brightcove Video Cloud
Imagine a fully instrumented satellite the size of a half-gallon milk carton: a cubesat.
Graduate enrollment in S&E and health programs increased by about 30 percent.
The 2011 bronze marker at NSF's Amundsen-Scott South Pole Station.
Norwegian Prime Minister Jens Stoltenberg and personnel at the geographic South Pole.
The geographic South Pole is located at 90 degrees south latitude.
Portrait of Roald Amundsen.
Students at Greene County Central High School watch transportation construction role model video.
Charity Cayton, a graduate research assistant (center), works with teachers during summer workshop.
Teacher John Sheridan goes in depth with Geometer's Sketchpad.
Female broad-tailed hummingbird visiting a nectar-containing tall larkspur in summer.
Resting briefly in a researcher's hand: a male broad-tailed hummingbird.
The Rocky Mountain Biological Laboratory in Colorado, where the research took place.
Male broad-tailed hummingbird, with the yellow pollen on its bill likely from a glacier lily.
As climate warms, glacier lilies flower earlier, with a record early-flowering in 2012.
Glacier lilies flower within days of snowmelt and are an important nectar resource.