20 STUNNING SHOTS OF EARTH FROM SPACE

Earth Day Pictures: 20 Stunning Shots of Earth From Space
By National Geographic News, 22 April 2013.

1. Earth Day From Above

Sapphire waters tinged with pink sediment seem to get tangled amid emerald vegetation in a satellite picture of Bombetoka Bay, on the northwestern coast of Madagascar.

To celebrate Earth Day National Geographic photo editors selected 20 of the most stunning pictures of Earth, as seen from space, including this jewel-toned shot of the island country off the African coast.

Captured in 2000 by a NASA satellite, the scene shows where the salty waters of the Mozambique Channel mingle with freshwater outflow from the island's Betsiboka River. Bombetoka Bay is home to some of Madagascar's largest mangrove forests, which provide shelter for diverse molluscs and crustaceans as well as habitat for sea turtles, water birds, and dugongs.

(This Earth Day, see some of our favourite reader pictures of Earth.)

2. Volcano Bubble

A "bubble" of steam surrounds volcanic ash rising from Sarychev Volcano, on the northwestern end of Matua Island, in a June 2009 picture taken by an astronaut. Matua is part of the Kuril Islands, a Russian archipelago that stretches from Hokkaido, Japan, to Kamchatka, Russia (see map).

(See pictures of quirky Earth Day stunts.)

3. Painted Desert

In the Simpson Desert of central Australia (see map), a recent fire is revealed by the vivid orange scars of plant-free sand seen in this 2002 astronaut photograph. (Wallpaper: Simpson Desert.)

4. Aurora Over Earth

During a geomagnetic storm, a neon green ribbon of aurora australis danced over Earth in this 2010 photograph taken by an astronaut on the International Space Station.

(Pictures: "The First Earth Day—Bell-Bottoms and Gas Masks.")

5. Circles of Life

Fields near the city of Perdizes, in the Minas Gerais state of Brazil (see map), are seen in a 2011 astronaut photograph. (Special section: Sustainable Agriculture.)

6. Model City

A fog-free San Francisco (see map) is seen in this 2004 oblique-angle satellite photograph. (Read National Geographic Traveller's Ultimate City Guide for San Francisco.)

7. Blue Planet

Eleuthera Island in the Bahamas is seen in a 2002 astronaut photograph taken from the International Space Station.

(Learn how you can help this Earth Day.)

8. Reflections on a Disaster

Spilled oil from the Deepwater Horizon disaster in the Gulf of Mexico is seen offshore of Petit Bois Island and Horn Island in eastern Mississippi (see map) in a June 2010 satellite picture. (Related: "Gulf Oil Spill: One Year Later.")

9. Web of Light

Seen in a 2003 astronaut photograph, the city of São Paulo, Brazil (see map) - home to 17 million people - stands out like a beacon in the night. The variations in colour are due to the city using different types of streetlights, according to NASA.

(Related: "First Green Supersonic Jet Launches on Earth Day.")

10. Circulation System

Tidal flats and channels on the western side of the Bahamas' Long Island (see map) are seen in a 2010 astronaut photograph.

11. Thunderstorm Over Asia

A thunderstorm hovers over Asia in a 1999 astronaut photograph taken from the space shuttle Columbia. Although the precise location of the storm isn't known, the shuttle was passing over Myanmar (Burma) at the time the picture was taken. (Photo Gallery: Lightning.)

12. Scenic Routes

The ever shifting Rio Negro and many of its past paths curl across the Patagonia region of Argentina (see map) in a 2010 astronaut photograph taken from the International Space Station.

13. Caustic Waters

Vivid Lake Natron in Tanzania (see map) - said by NASA to be the world's most caustic body of water - is a threatening shade of orange in a 2005 satellite image. Despite its reputation, the lake manages to host a native species of fish, the alkaline tilapia. (See: Megafishes.)

14. March to the Sea

The Neumayer Glacier on South Georgia Island, east of the southern tip of South America (map), creeps ever closer to the ocean in a 2009 satellite image. (Video: Glacier Melt.)

15. Made by Meteorite

In a satellite image released in 2004, salty seasonal lakes are brightly evident within the Shoemaker impact structure - at 1.7 billion years old, the oldest known meteorite-impact site in Australia. (Photos: Asteroids and Comets.)

16. Sea Snakes

Gullies slithering through sandbanks are seen in the Wadden Sea, near the Netherlands, in a 2006 satellite image.

17. Iceberg Nursery

In a 2010 satellite picture, the Matusevich Glacier calves new icebergs into an Antarctic channel, which cuts between the Lazarev Mountains and the Wilson Hills. (Read a first-person account of visiting Antarctica.)

18. Desert's End

In Eastern Algeria's stretch of the Sahara, the Tifernine Dune Field - a section of the Grand Erg Oriental dune sea (see map) - meets the Tinrhert Plateau, as seen in a 2008 astronaut photograph.

19. Cloud Vortices

Cloud vortices, or von Kármán vortices, create patterns in the sky near the Cape Verde Islands off northwestern Africa (see map). The vortices are caused by wind rushing over the islands. (Pictures: "New Cloud Type Discovered?")

20. Fresh Flows

Fresh, dark lava flows cover the Hawaiian volcano Kilauea, on the Big Island (map), as seen in a 2003 satellite picture. Kilauea is said to be home to the Hawaiian volcano goddess Pele. (Kilauea volcano pictures: "Hawaii Eruption Spurts Lava.")

[Source: National Geographic News. Edited.]

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