NASAのインスタグラム(nasa) - 5月12日 11時10分


As seen on #Cosmos: The Van Allen Belts

Named for their discoverer, James Van Allen, these two concentric, donut-shaped rings are filled with high-energy particles that gyrate, bounce, and drift through the region, sometimes shooting down to Earth's atmosphere, sometimes escaping out into space. The 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.

NASA currently has two Van Allen Probes (formerly known as the Radiation Belt Storm Probes (RBSP)) studying the two extreme and dynamic regions of space known as the Van Allen Radiation Belts that surround Earth.

This image shows an artist's depiction with cutaway section of the two giant donuts of radiation, called the Van Allen Belts, that surround Earth.

Credit: NASA/Goddard Space Flight Center Scientific Visualization Studio
#space #vanallen #earth #radiation #science #nasa #rbsp


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