Sunny skies and westerly winds prevailed over the Antarctic Peninsula on April 24, 2012. Cloudy weather had just moved out, and temperatures rose well above freezing as the MODIS sensor on NASA's Terra satellite passed overhead and captured a natural-color image.
This astronaut photograph illustrates the formation of wave clouds in the wake, or downwind side, of ÃŽle aux Cochons, often called Pig Island, in the southern Indian Ocean. The island's summit elevation is high enough to interact with cloud layers and flowing winds. Once air masses pass over the summit, they descend and may encounter alternating moist and dry air layers, enabling the formation of the discontinuous, chevron-shaped wave clouds.
In far northeastern Namibia, there's a skinny stretch of land sandwiched between Angola, Botswana and Zambia where the land is striped, as if a giant had dragged a rake over the landscape. On Feb. 1, 2012, the Advanced Land Imager on NASA's Earth Observing-1 satellite captured this natural-color image of the Caprivi Strip just north of the Okavango River.
In spring, it's not uncommon for a cloak of thick fog to cover the Yellow Sea. The shallow sea, which has a number of busy ports, usually sees 50 foggy days a year, but some weather stations in the area have measured as many as 80 days. One of those days was March 28, 2012, when the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor on NASA's Aqua satellite captured this natural-color image of a fog bank hugging the Korean coast.
The East African Rift, caused by fracturing of Earth's crust, is one of the great tectonic features of Africa. This astronaut photograph of the Eastern Branch of the Rift near Kenya's southern border highlights the classical geologic structures associated with a tectonic rift valley.
A steam plume blows south from the peak of Pagan Island's northernmost volcano in this photograph by an astronaut on the International Space Station (ISS). The ISS was located over the Pacific Ocean approximately 480 kilometers to the southeast of Pagan Island when the image was acquired on March 6, 2012.
This multicolored image taken by astronauts onboard the International Space Station captures a multitude of striking colors, textures and geometric patterns.
The city of Dubai”the largest metropolitan area within the emirate of Dubai”is a favorite subject of astronaut photography largely due to the unique island developments situated directly offshore in the Persian Gulf. These artificial archipelagos have been built such that their full design is only visible from aircraft or an orbiting spacecraft such as the International Space Station (ISS). Advancements in handheld camera technology and capabilities are also improving the ISS crew's ability to capture detailed night imagery.
On March 1, 2002, the largest Earth observation satellite ever built soared into orbit from the European Space Agency's launch base in Kourou, French Guiana. For a decade, Envisat has been keeping watch over our planet. This week we present not just one, but 10 intriguing images captured by Envisat.
It looks real fine from up here. I can see the whole state of Florida just laid out like on a map. Beautiful. Those were astronaut John Glenn's words as he began his third orbit around Earth 50 years ago on Feb. 20, 1962. Glenn was the first American to orbit Earth and one of the first humans to study the planet from space. Glenn truly connected with our home planet in a new way, and his descriptive observations are as engaging today as they were 50 years ago.
