The Atacama Desert – One of the Driest Places on Earth

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Atacama desert, a 15 million years old desert, located in south America stretches over 1000 kilometers. Located between the Andes and the Pacific Ocean, rises the most arid desert in the world. The Atacama desert is so dry that mountains of height 6,885 m have no glaciers, making them unique in the world. Studies have shown that the Atacama desert received no appreciable rainfall between 1570 and 1971, and some ancient riverbeds appear to have been dry for 12,000 years. The place is pretty cold despite being the driest desert and the temperature ranges between 0°C to 25°C.

atacama The Atacama Desert   One of the Driest Places on Earth

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credit: Miradas.com.br



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The International Space Station and the Docked Endeavour

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The International Space Station alias ISS is an internationally developed research facility, which is being assembled in low Earth orbit. The ISS can be seen from the Earth with the naked eye. It is the largest artificial satellite orbiting the Earth. This is images of the International Space Station and the docked space shuttle Endeavour. The pictures are the first taken of a shuttle docked to the International Space Station from the perspective of a Russian Soyuz spacecraft.

international space station The International Space Station and the Docked Endeavour

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Credit: NASA.gov



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Stromboli – The Most Active Volcano on the Earth

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Stromboli is a small island in the Tyrrhenian Sea, off the north coast of Sicily, containing one of the three active volcanoes in Italy. It is one of the eight Aeolian Islands, a volcanic arc north of Sicily. A significant geological feature of the volcano is the Sciara del Fuoco, a big horseshoe-shaped depression generated in the last 13,000 years by several collapses on the north western side of the cone. A typical eruption at Stromboli consists of several small gas explosions each hour, ejecting incandescent cinder, lapilli, and bombs to heights of a few tens or hundreds of feet. Tephra is glowing red when it leaves the vent but becomes black and nearly solid before hitting the ground. Occasionally, lava flows may also be produced. Lava flows from Stromboli are typically less fluid than Hawaiian lava flows and thus are somewhat shorter and thicker. Because of the lower fluidity, it is harder for gas to escape from the rising magma. Gas bubbles become pressurized and burst at the top of the magma column, producing small explosions and throwing clots of molten lava into the air. When this type of eruption is observed at other volcanoes, it is referred to as Strombolian.

stromboli volcano Stromboli   The Most Active Volcano on the Earth

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