Magnetic north has recently shifted toward Siberia at a pace of 20 kilometers a year, but scientists have been unable to post an emergency update of the World Magnetic Model, used by cellphone GPS systems and military navigators.
What We're Reading
Jan
17
2019
Accelerated Drift of Magnetic North and Government Shutdown Could Affect Navigation, The Washington Post
Jan
01
2019
NASA’s New Horizon Probe Begins Relaying View of Kuiper Belt Object, Science
The flyby of Ultima Thule has already cleared up one mystery: why the light reflecting off the snowman-shaped object does not fluctuate, as might be expected from an irregular spinning body. The reason: the rotation axis is pointed at the spacecraft.
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