Science
NASA sounding rocket discovered helium structures in the solar corona – Tech Explorist
NASA’s Helium Resonance Scattering in the Corona and Heliosphere, or HERSCHEL, sounding rocket has gathered a full global map of helium and hydrogen emission in the solar corona.
Solar abundances have been historically assumed to be representative of cosmic abundances. However, our knowledge of the solar abundance of helium, the second most abundant element, relies mainly on models and indirect measurements through helioseismic observations, because actual measurements of helium in the solar atmosphere are very scarce.
In 2009, NASA launched a sounding rocket investigation to measure helium in the extended solar atmosphere.
For the first time, scientists have gathered …
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