Before this decade is over, NASA will send astronauts to the moon for the first time since the Apollo Era. As part of the Artemis Program, NASA also plans to establish the infrastructure that will allow for a "sustained program ...
Space Exploration
May 16, 2022
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54
Atmospheric water vapor and energy transport play an important role in the Arctic climate. Changes in atmospheric energy and water vapor influx to the Arctic would have a significant impact on the interannual variations and ...
Environment
Apr 08, 2022
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3
In the Southern Hemisphere, the ice cover around Antarctica gradually expands from March to October each year. During this time the total ice area increases by 6 times to become larger than Russia. The sea ice then retreats ...
Earth Sciences
Mar 28, 2022
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224
Megaripples, intermediate-scale bedforms caused by the action of the wind, have been studied extensively and thought to be largely inactive relics of past climates, save for a few exceptions. A new paper by Planetary Science ...
Planetary Sciences
Jan 12, 2022
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86
A polar bear chases a reindeer into the water, drags it ashore and devours it, in a striking scene caught on film for the first time.
Ecology
Nov 28, 2021
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1163
The behavior of avalanches has generated interest among physicists for the insights that they can provide about many other systems, not least of which is how snow falls down a mountainside. To that end, a team of researchers ...
Condensed Matter
Nov 12, 2021
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84
A University of Toronto astronomer's research suggests the solar system is surrounded by a magnetic tunnel that can be seen in radio waves.
Astronomy
Oct 18, 2021
11
1103
Like Earth, Mars experiences climatic variations during the course of a year because of the tilted nature of its orbit (aka. seasonal change). Similarly, these variations in temperature result in interaction between the atmosphere ...
Planetary Sciences
Sep 29, 2021
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96
Two University of Wyoming researchers are part of the first-ever mapping of magnetic stripes—one of the foundations of plate tectonics—within the lower gabbroic section of fast-spreading oceanic crust.
Earth Sciences
Sep 23, 2021
0
140
A massive icebreaker cuts its way through the frozen waters of the Arctic Ocean, clearing a path to the North Pole, all white as far as the eye can see. But even here, the impact of climate change can be felt.
Environment
Sep 08, 2021
1
19
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
