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The Van Allen radiation belt is a zone of energetic charged particles, most of which originate from the solar wind, that are captured by and held around a planet by that planet's magnetosphere. Earth has two such belts, and sometimes others may be temporarily created.
The Van Allen radiation belts swell and shrink over time as part of a much larger space weather system driven by energy and material that erupt off the Sun's surface and fill the entire Solar System. Space weather is the source of aurora that shimmer in the night sky, but it also can disrupt satellites, cause power grid failures and disrupt GPS ...
In Los Alamos Scientific Laboratory report LA-6405, Herman Hoerlin gave the following explanation of the history of the original Argus experiment and of how the nuclear detonations led to the development of artificial radiation belts. [1] Before the discovery of the natural Van Allen belts in 1958, N. C. Christofilos had
SpaceX’s latest mission — a bold and risky trek into Earth’s Van Allen radiation belts by a four-person crew of civilians who will also aim to conduct the first commercial spacewalk — just ...
The South Atlantic Anomaly (SAA) is an area where Earth's inner Van Allen radiation belt comes closest to Earth's surface, dipping down to an altitude of 200 kilometres (120 mi). This leads to an increased flux of energetic particles in this region and exposes orbiting satellites (including the ISS) to higher-than-usual levels of ionizing ...
As they travel up to 1,400 kilometers (870 miles) from Earth's surface, they should pass through the Van Allen radiation belts, which are two donuts of intense radiation surrounding Earth.
They will also conduct a suite of more than 40 scientific experiments, testing the SpaceX Dragon spacecraft at altitudes that take it through the Van Allen radiation belts, and also performing ...
The Van Allen radiation belts were named after him, following his discovery using Geiger–Müller tube instruments on the 1958 satellites (Explorer 1, Explorer 3, and Pioneer 3) [2] [3] [4] during the International Geophysical Year. Van Allen led the scientific community in putting scientific research instruments on space satellites.