Floodwaters have worked their way through a series of parched channels, watering holes, and lagoons to start filling the iconic Australian lake.
Published May 28, 2019
Long and short. Deep and shallow. Salty and fresh. Blue and brown. These are Africa’s Lake Tanganyika and Lake Rukwa.
Published Jun 20, 2019
The Great Salt Lake of northern Utah is a remnant of glacial Lake Bonneville that extended over much of present-day western Utah and into the neighboring states of Nevada and Idaho approximately 32,000 to 14,000 years ago. The north arm of the lake, displayed in this astronaut photograph from April 30, 2007, typically has twice the salinity of the rest of the lake due to impoundment of water by a railroad causeway that crosses the lake from east to west. The causeway restricts water flow, and the separation has led to a striking division in the types of algae and bacteria found in the north and south arms of the lake.
Published Jul 16, 2007
By mid-June 2009, the rare filling of this lake in Australia’s Simpson Desert appeared to have reached its peak.
Published Jun 21, 2009
In May 2016, the reservoir behind Hoover Dam reached its lowest level since the 1930s.
Published May 27, 2016
Salt and algae lend color to the bed of this desert lake in Iran.
Published Feb 20, 2017
When the water gets saltier in Iran’s largest lake, the microscopic inhabitants can turn the water dark red.
Published Jul 26, 2016
In October 2016, one of America’s largest lakes reached its lowest level on record.
Published Nov 3, 2016
If Lake Natron, in Africa’s Great Rift Valley, had a color theme, it would be pink. The alkali salt crust on the surface of the lake is often colored red or pink by the salt-loving microorganisms that live there. Also, the lake is the only breeding area for the 2.5 million Lesser Flamingoes that live in the valley. These flamingoes flock along saline lakes in the region, where they feed on Spirulina, a blue-green algae with red pigments. This mosaic of photographs of the southern portion of Lake Natron shows the largest open lagoon area, and island mud flat, and a large area of pink salt crust. The colors show the actual colors viewed by the astronauts. Each time the lake is photographed, there are differences in the pattern of its salt crust, and the red colors of the blue-green algae and bacteria on the surface of the crust.
Published Apr 10, 2006
Located on the border of Russia and China, Lake Khanka plays an important role in supporting biodiversity in the region.
Published Jun 10, 2019
The usually dry, inland lake in Australia came alive with color after flood waters arrived in the late summer of 2017.
Published Feb 27, 2017
Pyramid Lake, in western Nevada, is a remnant of the ancient and much larger Lake Lahontan that formed during the last Ice Age.
Published Oct 18, 2010
Straddling Austria and Hungary, the lake is also known as the “Sea of the Viennese.”
Published Apr 10, 2017
Surging with fresh water from heavy winter snow melt, Lake Powell rose significantly in the summer of 2011 after many years of low levels.
Published Aug 12, 2011
Lago de Valencia (Lake Valencia) is located in north-central Venezuela and is the largest freshwater lake in the country. The lake was formed approximately 2-3 million years ago due to faulting and subsequent damming of the Valencia River. The lake has been completely dry during several discrete periods of its geologic history. Since 1976 Lake Valencia water levels have risen due to diversion of water from neighboring watersheds—it currently acts as a reservoir for the surrounding urban centers (such as Maracay).
Published Nov 22, 2004
Lake Orumiyeh is one of the world’s great salt lakes, but it is shrinking.
Published Nov 9, 2011
Satellite data suggests this Russian salt lake is getting brighter due to the installation of check dams.
Published Dec 3, 2014
Astronauts aboard the Space Shuttle and Space Station have tracked regional environmental changes spanning decades. Lake Chapala, Mexico’s largest lake, serves as one example of an area experiencing significant changes that have been well documented from space. Over the past twenty years, the lake’s water levels have decreased in conjunction with increasing development from the fast-growing city of Guadalajara.
Published Aug 30, 2004
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