This series of images reconstructs the geology of the region around Mars' Mount Sharp, where NASA's Curiosity Mars rover landed and is now driving. The images were taken on Earth and have been altered for the illustration.
This image from NASA's Terra spacecraft shows Lake Mackay, the largest of hundreds of ephemeral lakes scattered throughout Western Australia and the Northern Territory, and is the second largest lake in Australia.
NASA's ISS-RapidScat ocean wind scatterometer viewed Hurricane Ana as it approached Hawaii. From Oct. 13 to Oct. 19, 2014, RapidScat observed Ana seven times. This frame is from a movie containing multiple days of observation.
NASA's Terra spacecraft shows Mount Cameroon, an active volcano in Cameroon near the Gulf of Guinea. It is one of Africa's largest volcanoes, rising over 4,000 meters, with more than 100 small cinder cones.
NASA's New RapidScat Breezes Into Operation Aboard Space Station
Launched Sept. 21, 2014, to the International Space Station, NASA's newest Earth-observing mission, the International Space Station-RapidScat scatterometer to measure global ocean near-surface wind speeds and directions.
This trio of images depicts satellite observations of declining water storage in California as seen by NASA's Gravity Recovery and Climate Experiment satellites in June 2002 (left), June 2008 (center) and June 2014 (right).
Validating Carbon Dioxide Measurements from NASA's OCO-2 Over Los Angeles
This image shows NASA's OCO-2 measurements of carbon dioxide levels over Pasadena and the northern Los Angeles basin on Sept. 5, 2014. Each colored dot represents a single measurement of the greenhouse gas made during an overflight of the area.
Iceland's Bardarbunga Volcano Imaged by NASA Spacecraft
Since the end of August 2014, Iceland's Bardarbunga volcano has been pouring out lava from a growing fissure. NASA's Terra spacecraft shows the flows have been accompanied by spectacular lava fountains.
Tanzania Images Highlight Improvements in Full-Resolution SRTM Africa Data
A site in the Crater Highlands of Tanzania reveals the difference between NASA's Shuttle Radar Topography Mission (SRTM) digital elevation model data as originally released in 2004 (left) and as now released at full resolution in 2014 (right).
Progress of Hawaii Lava Flow Tracked by NASA Spacecraft
On June 27, 2014, a new vent opened on Hawaii's Puu Oo vent, on the eastern flank of Kilauea volcano. NASA's Terra spacecraft shows the hot lava flow in white, extending about 11 miles (17 kilometers) from the vent.
This image from NASA's Terra spacecraft shows Petropavlovsk-Kamchatsky (P-K), which is the administrative, cultural, scientific and economic center of Kamchatka Krai, Russia on the Kamchatka Peninsula.
Progress of Icelandic Lava Flows Charted by NASA's EO-1 Spacecraft
On the night of Sept. 6, 2014 NASA's Earth Observing 1 (EO-1) spacecraft observed the ongoing eruption at Holuhraun, Iceland. Partially covered by clouds, this scene shows the extent of the lava flows that have been erupting.