Although the lake is dry most of the time, it's home to many species of water birds. When full, primarily during very wet periods, the lake retains water and allows no outflow and is hence classified as an endorheic basin.

Having gained independence from Sudan in July 2011, South Sudan is the youngest country in the world. It has an estimated population of 13 million people, more than 80% of whom live in rural areas.

Thematic experts from the Corinth Rift Laboratory in Greece generated a displacement map using Copernicus Sentinel-2 acquisitions from Sept. 17 and Oct. 2, showing the impact of the 7.5-magnitude earthquake that hit Indonesia on Sept. 28, 2018.

Satellites and astronauts observed Typhoon Trami on its march across the Western Pacific Ocean.

The NanoRacks-Remove Debris satellite successfully deployed a net to capture a nanosatellite that simulates debris.

European Space Agency (ESA) astronaut Alexander Gerst took this image of Hurricane Florence on Sept. 12, 2018, 400 kilometers high from the International Space Station.

On Sept. 9, 2018, Florence, Isaac and Helene were all churning up the North Atlantic.

An astronaut aboard the International Space Station (ISS) centered this photograph on Belle Isle, an island in the Detroit River.

The Copernicus Sentinel-3A satellite took the temperature at the top of Hurricane Lane as it headed toward Hawaii's Big Island on Aug. 22, 2018.

The West Coast of the United States is shrouded in smoke from the 110 large fires (this does not include smaller fires within each complex of fires) that have erupted across the region during this fire season.