Zeme no satelīta.4

Lake Amadeus – Like frantic brushstrokes, fire scars cover the arid landscape near Lake Amadeus (upper right) in Australia’s Northern Territory. Lake Amadeus is rich in salts that have been leached out of underlying sediments. When dry, its lake bed is transformed into a glistening sheet of white salt crystals.

Lake Carnegie – Ephemeral Lake Carnegie, in Western Australia, fills with water only during periods of significant rainfall. In dry years, it is reduced to a muddy marsh.

Lake Disappointment – Surrounded by sand dunes, Lake Disappointment is an ephemeral salt lake in one of the most remote areas of Western Australia. An early explorer supposedly named the lake in 1897 after following a number of creeks that he thought would lead to a large lake; they did, but the lake’s extremely salty water was not drinkable.

Lena Delta - The Lena River, some 2,800 miles (4,400 km) long, is one of the largest rivers in the world. The Lena Delta Reserve is the most extensive protected wilderness area in Russia. It is an important refuge and breeding grounds for many species of Siberian wildlife.

Malaspina Glacier - The tongue of the Malaspina Glacier, the largest glacier in Alaska, fills most of this image.

Mississippi River Delta - Turbid waters spill out into the Gulf of Mexico where their suspended sediment is deposited to form the Mississippi River Delta.

Mt. Etna - Located on the Italian island of Sicily, Mt. Etna is one of the world’s most active volcanoes. In this image of the volcano in 2001, a plume of steam and smoke rising from the crater drifts over some of the many dark lava flows that cover its slopes.

Namib Desert, Namibia Coastal winds create the tallest sand dunes in the world here, with some dunes reaching 980 feet (300 meters) in height.