Geography

Circumhorizontal Arc

Circumhorizontal Arc

Circumhorizontal arcs, often known as “fire rainbows,” are an optical phenomenon caused by the refraction of sunlight or moonlight in plate-shaped ice crystals floating in the sky, most commonly in cirrus or cirrostratus clouds. These arcs are most usually seen in cirrus or cirrostratus cloud.....

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Sun Dog (Formation, History, and Etymology)

Sun Dog (Formation, History, and Etymology)

A sun dog (or sundog) or mock sun, also known as a parhelion (plural parhelia) in meteorology, is a natural optical phenomenon that appears on either side of the Sun and consists of one or two colorful light spots. Within a 22° halo, two sun dogs frequently flank the Sun. The margins that are cl.....

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Volcano Research Advances our understanding of the Deep Structure of Volcanoes

Volcano Research Advances our understanding of the Deep Structure of Volcanoes

Because of the inherent difficulty of seeing beneath the Earth’s surface, geoscientists have struggled to understand the deep structure of volcanoes. To gain a more comprehensive understanding of volcanoes and their subsurface structure, a team of researchers from various disciplines, inclu.....

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Bárðarbunga Volcano, Iceland

Bárðarbunga Volcano, Iceland

Bárðarbunga (Icelandic pronunciation: ˈpaurðarˌpuŋka) is a big central volcano in Iceland that lies beneath the 500-meter-thick Vatnajokull glacier. Bárðarbunga, Iceland’s second tallest peak at 2,009 meters (6,591 feet) above sea level, is part of a volcanic system that stretches .....

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Cape Breton Island, Canada

Cape Breton Island, Canada

The stunning natural beauty and safe, friendly villages of Cape Breton Island (French: Île du Cap-Breton, formerly Île-Royale; Scottish Gaelic: Ceap Breatainn or Eilean Cheap Breatainn; Mi’kmaq: Unamaꞌki) are world-renowned. It is a North American island off the coast of North America t.....

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Newfoundland and Labrador, Canada

Newfoundland and Labrador, Canada

Newfoundland and Labrador (/ˈnjuːfənlænd  … ˈlæbrədɔːr/), abbreviated as NFLD, is a Canadian province made up of the island of Newfoundland and a larger mainland component to the northwest, Labrador. Newfoundland and Labrador is the newest of Canada’s ten provinces, havin.....

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Baffin Island, Canada

Baffin Island, Canada

Baffin Island (previously Baffin Land) is Canada’s biggest and fifth-largest island in the world, located between Greenland and the Canadian mainland. It is the largest island in the Canadian province of Nunavut, covering 195,928 square miles (507,451 square kilometers). It has a populatio.....

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Devon Island, Canada

Devon Island, Canada

Devon Island (Inuktitut: ᑕᓪᓗᕈᑎᑦ, Tallurutit) is the largest of the Parry Islands in the Arctic Ocean, south of Ellesmere Island and west of Baffin Bay, in Nunavut, Canada. It is the world’s largest uninhabited island (no permanent occupants) and is located in Canada. For good ca.....

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Houtouwan, Shengshan Island, China

Houtouwan, Shengshan Island, China

Houtouwan (Chinese: 后头湾; pinyin: Hòutóuwān) is a Chinese island located north of Shengshan Island (Chinese: 嵊山岛; pinyin: Shèngshān dǎo), one of the 400 Shengsi Islands. The settlement is located near the sea, atop cliffs, and mist-shrouded mountains that obscure the horizon.....

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History of Kolmanskop City, Namibia

History of Kolmanskop City, Namibia

Kolmanskop (Afrikaans for “Coleman’s head,” German: Kolmannskuppe) is a ghost town in southern Africa’s Namib Desert, in the center of a region known as “the forbidden zone,” with brightly colored wallpaper peeling off the walls and decaying houses now swamped .....

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Kiritimati Island

Kiritimati Island

Kiritimati Island, often known as Christmas Island, is a coral atoll in the northern Line Islands in the Pacific Ocean. With a circumference of roughly 100 miles (160 km), it is the world’s largest completely coral formation island. Captain James Cook, an English navigator, discovered Kirit.....

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Mount Fuji, Japan

Mount Fuji, Japan

Mount Fuji (富士山, Fujisan, Japanese: ɸɯꜜ(d)ʑisaɴ), Japanese Fuji-san, also called Fujiyama or Fuji no Yama, located on the island of Honshū, is the highest mountain in Japan, standing 3,776.24 m (12,389.2 ft). It is a national symbol of Japan, contributing to the country’s physi.....

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