Stories tagged James Van Allen

Aug
10
2006

Magnetosphere: Solar particles interact with magnetosphere. NASA graphic via wikipedia
Magnetosphere: Solar particles interact with magnetosphere. NASA graphic via wikipedia

SUNSPOT 904

A large and beautiful new sunspot is emerging from the sun's eastern limb: image. So far it poses no threat for Earth-directed solar flares, but this could change. The spot is growing fast and turning toward Earth. Stay tuned for updates.

11 year sun spot cyle

We are currently at the lowest activity of the 11 year sunspot cycle. Sun spots, when facing Earth can send solar flares toward Earth. The Earth's magnetosphere shields us from these high energy particles but astronauts in space need to be concerned.

James Van Allen dies at 91

I think it is fitting to mention that James Van Allen died yesterday Aug 9, 2006 He discovered of the Van Allen radiation belts, which I associate with the Nothern lights, which come from sun spot flares.