New Earth-based telescope observations show that auroras at Jupiter's poles are heating the planet's atmosphere to a greater depth than previously thought—and that it is a rapid response to the solar wind.
Space Exploration
Apr 09, 2019
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Researchers at the Paul Scherrer Institute PSI and ETH Zurich have discovered a special phenomenon of magnetism in the nano range. It enables magnets to be assembled in unusual configurations. This could be used to build ...
Nanophysics
Mar 28, 2019
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North isn't quite where it used to be.
Earth Sciences
Feb 04, 2019
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What kinds of computers would be conceivable if physics worked differently? Quantum physicists Marius Krumm from the University of Vienna and Markus Müller from the Viennese Institute of Quantum Optics and Quantum Information ...
Quantum Physics
Feb 04, 2019
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59
An Arctic-like deep freeze gripping much of the United States with double-digit subzero temperatures is the coldest of its kind in two decades, but is it linked to climate change?
Environment
Jan 30, 2019
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A record-breaking cold wave is sending literal shivers down the spines of millions of Americans. Temperatures across the upper Midwest are forecast to fall an astonishing 50 degrees Fahrenheit (28 degrees Celsius) below normal ...
Environment
Jan 29, 2019
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In the first week of January, the Arctic stratosphere suddenly warmed up, an occurrence known as "sudden stratospheric warming" (SSW). This phenomenon results in cold winter weather, just the kind we are facing now – ETH ...
Earth Sciences
Jan 29, 2019
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11
For many years, scientists assumed the aurora seen around the north pole was identical to the aurora seen around the south pole. The poles are connected by magnetic field lines and auroral displays are caused by charged particles ...
Space Exploration
Jan 25, 2019
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We've sent numerous missions into space to study the Sun; past and present solar explorers include ESA's Proba-2 (PRoject for OnBoard Autonomy 2) and SOHO (SOlar Heliospheric Observatory) probes, NASA's SDO and STEREO missions ...
Space Exploration
Dec 03, 2018
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17
On Sunday, about a dozen engineers and scientists gathered in the mission control room at NASA's Jet Propulsion Laboratory. They listened intently through headsets while training their eyes on a curving wall of monitors to ...
Space Exploration
Nov 26, 2018
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Coordinates: 90°N 0°W / 90°N 0°W / 90; -0
The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is, subject to the caveats explained below, defined as the point in the northern hemisphere where the Earth's axis of rotation meets the Earth's surface. It should not be confused with the North Magnetic Pole.
The North Pole is the northernmost point on Earth, lying diametrically opposite the South Pole. It defines geodetic latitude 90° North, as well as the direction of True North. At the North Pole all directions point south; all lines of longitude converge there, so its longitude can be defined as any degree value.
While the South Pole lies on a continental land mass, the North Pole is located in the middle of the Arctic Ocean amidst waters that are almost permanently covered with constantly shifting sea ice. This makes it impractical to construct a permanent station at the North Pole (unlike the South Pole). However, the Soviet Union, and later Russia, have constructed a number of manned drifting stations, some of which have passed over or very close to the Pole. Recently, scientists have predicted that the North Pole may become seasonally ice-free by 2065 due to Arctic shrinkage. More pessimistically, it was claimed by some scientists that the Arctic ice-cap might temporarily disappear in mid 2008, a prediction which did not come to pass. On December 15, 2008, the Canadian science TV series Daily Planet reported that scientists now predict the ice cap could melt away by 2014.
The sea depth at the North Pole has been measured at 4,261 metres (13,980 ft). The nearest land is usually said to be Kaffeklubben Island, off the northern coast of Greenland about 700 km (440 mi) away, though some perhaps non-permanent gravel banks lie slightly further north.
This text uses material from Wikipedia, licensed under CC BY-SA
