Out of the Blue: Islands Seen From Space

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Islands are some of the most beautiful, peaceful, violent, desolate and unique places on Earth. While experiencing a tropical island
0 l/ z- p  E$ x8 ^: x1 Ifrom its sandy beaches, or a volcanic island from its towering peaks is wonderful, experiencing them from above can be inspiring as well.公仔箱論壇5 \2 g4 B' O+ l5 H' {

% ~3 P) T- ?4 g8 {2 N% S# y! TWe’ve collected images taken by astronauts and satellites from space of some of the most interesting islands on the planet.
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Atafu Atoll, Tokelau, Pacific Oceantvb now,tvbnow,bttvb+ _3 Q6 b5 N+ |1 q  v

% k# {5 O3 V+ c% VAround 500 people live on Atafu Atoll, mostly in a village that can be seen on the corner in the left of the image above. Atafu is just five
5 D; ]2 P9 \. jwww3.tvboxnow.commiles wide and is the smallest of three atolls in the Tokelau Islands, a New Zealand territory., e& R% U, h; `6 c; a2 G8 `- n

Atafu is made up of coral reefs that surrounded the flanks of a volcano that has since become inactive and submerged. Like many tropical tvb now,tvbnow,bttvb' A. K: w  l5 O0 @6 F9 A3 m  M- @
atolls, Atafu is very low lying and vulnerable to sea-level rise. This photograph was taken by astronauts aboard the International Space Station in January.& P# X- h5 j8 B5 v5 J# y
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Onekotan Island, Russia1 Z% {: J* {1 ]  o

2 R: D$ D' q6 Xtvb now,tvbnow,bttvbAn island within an island was created after a big eruption around 9,000 years ago caused the peak of Onekotan’s volcano to collapse, forming
: S7 x9 K+ G6 \5 i; Ia caldera that subsequently filled with water. The island inside the caldera is known as Krenitzyn Peak, which is the highest point on the
8 p% ]' O; a0 X( dtvb now,tvbnow,bttvbisland at around 4,300 feet.tvb now,tvbnow,bttvb, O/ b$ V* X+ i& ]. L
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Onekotan is in Russia’s Kuril Islands between Japan and the tip of the Kamchatka Peninsula. The islands were formed by volcanic activity
caused by the subduction of the Pacific Plate beneath the Eurasian Plate. Subduction can also generate some of the largest earthquakes 4 j3 h3 L! H3 o) s0 B' G
on Earth, including a magnitude 9 here in 1952 which was followed a week later by Krenitzyn’s only historical eruption. This image was 公仔箱論壇- J0 P% s# L, |- O. D
captured by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite on June 10, 2009.
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, D6 G! {0 u# s/ |0 }, QGalapagos Islands, Pacific Ocean
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The Galapagos Islands are the tops of volcanoes on the sea floor off the coast of South America along the equator. The volcanic activity
that formed the islands is thought to be the result of a plume of hot mantle material rising from deep in the Earth’s interior.
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The largest island, Isla Isabela, is made of the lava flows of six gently sloped shield volcanoes. The northernmost of Isabela’s volcanoes, 公仔箱論壇0 G! _- V/ X# U5 |( l
at the top of the image above, is Wolf Volcano, which has erupted at least nine times since 1797. This image was taken by the Landsat % Y! p' l( K! j* }$ W  V5 p
7 satellite in 2001.www3.tvboxnow.com5 ^% |3 G9 v: n/ Q, _

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* F$ q% D- I+ a3 ^0 K; q* z7 \Maldives, Indian Ocean
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The Maldives comprise 1,192 small coral islands adding up to just 115 square miles of territory. About 330,00 people live on the islands, www3.tvboxnow.com& p; j3 F/ a5 b% _. |
the average elevation of which is a little more than 3 feet. It is probably the lowest country in the world.tvb now,tvbnow,bttvb. _- X2 g# |) K/ U

5 C, E- ]5 }0 |9 U7 ^This image of the North and South Malosmadulu Atolls was taken in 2002 by the ASTER instrument aboard NASA’s Terra satellite.
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Henrietta Island, East Siberian SeaTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。$ u' Y) j6 v; }: G1 Z7 p* J! z/ m4 m
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This glacier-covered Russian island is just 6 miles wide. Beneath the ice, the island is made up of 500-million-year-old volcanic rocks overlain by
$ V" `4 J8 y5 E( @tvb now,tvbnow,bttvbyounger sedimentary rocks. This image was taken by the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 satellite on April 30, 2009.公仔箱論壇& m+ X( D" s5 X- Z- R# g$ |% r$ ?
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Eleuthera Island, Bahamas( ^5 j2 e+ ]9 x5 R9 s

The spectacular underwater formations to the west of Eleuthera Island are made of calcium carbonate sand that has been eroded off 公仔箱論壇1 @& S5 _5 R- S; M# v* c& r% `
of coral reefs and deposited in dunes by ocean currents.

) p' T$ W, t$ P4 vtvb now,tvbnow,bttvbThis 2002 image was captured by astronauts aboard the International Space Station. Located in the middle of the Bahamas, Eleuthra Islandwww3.tvboxnow.com8 w7 v/ a. ]2 t- l
is 110 miles long, and in places just over a mile wide. Around 8,000 people live there.
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Augustine Volcano, Alaska
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The most active volcano in Alaska’s Aleutian arc, Augustine Volcano’s biggest historical eruption occurred in 1883. It has been erupting for
, B5 T- d; F& A  O8 p. b7 ~40,000 years. This image, captured by The Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA ’s Terra satellite www3.tvboxnow.com3 u8 x; O0 P3 X& j8 C4 c" ?+ r% [
in April 2006, shows a steam or ash plume at the tail end of several months of explosive eruptions.

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Lesser Sunda Islands, Indonesia
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The three largest islands in this image, and many smaller ones, make up Indonesia’s Komodo National Park which was established in 1980 to protect $ J* `) w& B6 }$ Q8 v6 `
the world’s largest lizard species, Komodo dragon. The total area of the park is 230 square miles. The islands are volcanoes caused by the collision TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。! j9 Z# s( y, r- F' b3 @
of two tectonic plates. This image was captured by the Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA’s Terra satellite in 2000.
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* m5 x. M7 u. d! y* [www3.tvboxnow.comHawaiian Islands, Pacific Oceanwww3.tvboxnow.com7 Y2 Y) C* t2 S1 a8 s2 ^3 J

The Hawaiian Islands were formed by an upwelling plume of hot mantle material, called a hotspot. As the Pacific plate moved over the hotspot, it
formed a chain of islands that first grew larger as they actively erupted, and then slowly eroded and sank below the surface of the ocean as the
: `8 c7 w4 y" o* N; j" @  ^7 l; Tcrust beneath them cooled.
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& c7 `( p0 v. s) S+ b公仔箱論壇Today, the hotspot is causing active volcanism on the Big Island of Hawaii. Kilauea Volcano has been erupting continuously since 1983. The rest
/ ?1 o0 b9 W$ ^7 @tvb now,tvbnow,bttvbof the islands, which get older from right to left, are Maui, Kahoolawe, Lanai, Molokai, Oahu, Kauai and Niihau. This image was captured by the tvb now,tvbnow,bttvb4 ], ~$ o+ m5 O+ J* `: j, T' b
MODIS instrument aboard NASA’s Terra satellite.Hawaiian Islands, Pacific Ocean

The Hawaiian Islands were formed by an upwelling plume of hot mantle material, called a hotspot. As the Pacific plate moved over the hotspot, - A4 `' g' k8 C+ F! i% z
it formed a chain of islands that first grew larger as they actively erupted, and then slowly eroded and sank below the surface of the ocean as www3.tvboxnow.com8 M) a. t# s% h% g+ g
the crust beneath them cooled.0 c5 x3 S, x4 a, g9 V
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Today, the hotspot is causing active volcanism on the Big Island of Hawaii. Kilauea Volcano has been erupting continuously since 1983. The
rest of the islands, which get older from right to left, are Maui, Kahoolawe, Lanai, Molokai, Oahu, Kauai and Niihau. This image was captured 6 A+ i+ \9 f) f% j4 c2 m
by the MODIS instrument aboard NASA’s Terra satellite.
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Alejandro Selkirk Island, South Pacific Ocean
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This small member of the Juan Fernandez Islands off the coast of Chile measures just under a mile across. But its 5,000 feet of elevation is high enough 公仔箱論壇+ F' }& C0 e2 o7 [/ C# W
to reach the layer of stratocumulus clouds pictured above. The result is a type of flow known as a von Karmen vortex street. This striking, curly $ f! N  c9 j* {2 ]  i2 G, l3 f. x& g
pattern of eddies can also be seen in clouds, and fluids or air moving past rounded objects such as an airplane wing. This image was taken tvb now,tvbnow,bttvb6 x/ D! X) d5 I: K5 l
by the Landsat 7 satellite in 1999.
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Millennium Island, Republic of Kiribati, South Pacific Ocean
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Also known as Caroline Island, Millennium Island is made of coral reefs that grew around a volcano, which is now underwater, leaving behind a
central lagoon. The maximum elevation of the island is less than 20 feet above sea level. In the past, the island has been inhabited and mined www3.tvboxnow.com7 z/ ?3 R1 G2 [5 H( W
for guano, though today there are no people and it is among the world’s most pristine tropical islands. This image was taken by astronauts # A5 g) [. [$ ]$ i  o* k, R& v
aboard the International Space Station on July 1, 2009.