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We know the sun belches out solar winds, but the origin of these streams of charged particles remain a mystery and has been the subject of numerous studies over the past decades.
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NASA Earth Observatory map by Joshua Stevens, using data from Sandwell, D. et al. (2014).
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H. P. Díaz/Centro de Modelado Científico/NASA
NASA has published the first maps from its new space-based pollution instrument, TEMPO (Tropospheric Emissions: Monitoring of Pollution). Although you won’t be shocked to learn it reveals higher pollution rates in metropolitan areas, the tool can help scientists better study North American air quality on an hourly basis.
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