NASA's THEMIS mission observed how dense particles normally near Earth in a layer of the uppermost atmosphere called the plasmasphere can send a plume up through space to help protect against ...

The two populations of hiss, low and high frequency, inhabit two separate regions in near-Earth space. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted ...

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Development of advanced HF Doppler radar systems for the exploration of geospace plasma from ground and satellites; Global Ionospheric Radio Observatory (GIRO); radio wave propagation; ionosphere and ...

Haurwitz and Chapman 1 have recently described the discovery, analysis and distribution of the lunar semidiurnal air tide. There is, in addition to lunar semidiurnal excitation, a smaller lunar ...

The work for which Dad is perhaps best known is his contribution to what became known as “SUPIM’, an acronym for Sheffield University Plasmasphere - Ionosphere Model. It was a model that was ahead of ...