NASA's Terra spacecraft views central South Dakota, where the Missouri River forms a meander bend, creating Lake Sharpe. Eventually, the Missouri River will cut through the skinny peninsula, creating a shorter path.
NASA Radar Demonstrates Ability to Foresee Sinkholes
Analyses by NASA's UAVSAR radar performed after the Bayou Corne, La., sinkhole formed, show it was able to detect precursory ground surface movement of up to 10.2 inches (260 millimeters) more than a month before the sinkhole collapsed in Aug. 2012.
Warm Rivers Play Role in Arctic Sea Ice Melt (Animation)
This frame from a NASA MODIS animation depicts warming sea surface temperatures in the Arctic's Beaufort Sea after warm waters from Canada's Mackenzie River broke through a shoreline sea ice barrier in summer 2012, enhancing the melting of sea ice.
Beaufort Sea surface temperatures where Canada's Mackenzie River discharges into the Arctic Ocean, measured by NASA's MODIS instrument; warm river waters had broken through a shoreline sea ice barrier to enhance sea ice melt.
Ashy Aftermath of Indonesian Volcano Eruption seen by NASA Spacecraft
On Feb. 13, 2014, violent eruption of Kelud stratovolcano in Java, Indonesia sent volcanic ash covering an area of 70,000 square miles, prompting the evacuation of tens of thousands of people. This image is from NASA's Terra spacecraft.
This image acquired by NASA's Terra spacecraft depicts the high water levels and flooding along the Thames River west of London as record-breaking rains covered the United Kingdom in January and February.
Nighttime Look at Ambrym Volcano, Vanuatu by NASA Spacecraft
Ambrym volcano in Vanuatu is one of the most active volcanoes in the world. A large summit caldera contains two active vent complexes, Marum and Benbow is seen in this February 12, 2014 nighttime thermal infrared image from NASA's Terra spacecraft.
Latest Activity at Europe's Most Active Volcano Captured by NASA Spacecraft
This image acquired by NASA's Terra spacecraft is of Mt. Etna, Europe's most active volcano, as it continued its latest eruptive activity with a new lava flow from the recently formed southeast crater.
This view of the twilight sky and Martian horizon taken by NASA's Curiosity Mars rover includes Earth as the brightest point of light in the night sky. Earth is a little left of center in the image, and our moon is just below Earth.
Curiosity Mars Rover's First Image of Earth and Earth's Moon
The two bodies in this portion of an evening-sky view by NASA's Mars rover Curiosity are Earth and Earth's moon. The rover's Mast Camera (Mastcam) imaged them in the twilight sky of Curiosity's 529th Martian day, or sol (Jan. 31, 2014).
Sochi, Russia Winter Olympic Sites (Mountain Cluster)
The 2014 Winter Olympic ski runs may be rated double black diamond, but they're not quite as steep as they appear in this image acquired by NASA's Terra spacecraft, of the skiing and snowboarding sites for the Sochi Winter Olympic Games.
Sochi, Russia Winter Olympic Sites (Coastal Cluster)
This image acquired by NASA's Terra spacecraft shows the Sochi Olympic Park Coastal Cluster, the circular area on the shoreline in the bottom center of the image, which was built for Olympic indoor sports.
This image acquired by NASA's Terra spacecraft is of the Sierra Leone estuary, which became a focal point for trade and interaction between Africans and Europeans because of its exceptional harbor, starting in the mid-15th century.
Artist's rendering of NASA's ISS-RapidScat instrument (inset), which will launch to the International Space Station in 2014 to measure ocean surface wind speed and direction and help improve weather forecasts, including hurricane monitoring.