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Scientists’ discovery of zebra stripes in space resolves a half-century mystery

Study by UCLA researchers and others could explain mysterious plasma waves in space

In the 1960s, NASA launched six satellites to study the Earth’s atmosphere, magnetosphere and the space between Earth and the moon. Using observations from those satellites, Christopher Russell, a UCLA graduate student at the time, detected mysterious plasma waves in the Van Allen radiation belts, the donut-shaped rings surrounding the Earth that contain high-energy particles trapped by the planet’s magnetic field. (more…)

UCLA scientists explain the formation of unusual ring of radiation in space

By Guest PostSeptember 29, 2013Scienceadam kellerman, alexander drozdov, dmitriy subbotin, earth, explain, formation, hazardous, high energy electrons, highly charged particles, jack eddy fellowship, ksenia orlova, kyung chan kim, MIT, model, NASA, plasma waves, President Obama, radiation belts, ring of radiation, russia, simulation, skolkovo institute, Space, third radiation ring, ucla scientists, ultra relativistic electrons, unusual, van allen, velocity, yuri shprits

Since the discovery of the Van Allen radiation belts in 1958, space scientists have believed these belts encircling the Earth consist of two doughnut-shaped rings of highly charged particles — an inner ring of high-energy electrons and energetic positive ions and an outer ring of high-energy electrons.

In February of this year, a team of scientists reported the surprising discovery of a previously unknown third radiation ring — a narrow one that briefly appeared between the inner and outer rings in September 2012 and persisted for a month. (more…)

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Scientists’ discovery of zebra stripes in space resolves a half-century mystery

UCLA scientists explain the formation of unusual ring of radiation in space