The Arktika expedition, led by French explorer Gilles Elkaïm, was supported by ESA
Gilles Elkaïm, during the Arktika expedition
The French explorer, Gilles Elkaïm, who left North Cape (Norway) in May 2000, has almost completed the seventh and final stage of his 12,000 km solo trek along the rim of the Arctic Ocean, from the Atlantic to the Pacific, on foot, kayak, skis, by sled pulled by himself or by dogs... with help from ESA.
The “Arktika” expedition is nearing its conclusion. Gilles Elkaïm and his twelve sled dogs, who, last May, set up summer camp in a disused military base, close to Cape Shelagskiy (the most northerly point in Chukotskiy, in the far east of Russia) restarted their trek on 14 January during the polar night. Ahead were 1,500 chaotic kilometres of pack ice to be tackled in permanently stormy conditions before reaching the Bering Strait and completing the first crossing of the Eurasian Arctic without mechanical means or any assistance.
Using space technology
Pierre Brisson | ESA
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The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
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Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.
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The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.
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