image credit: Rodrigo Roesch
What Causes the Aurora
Is it:
a) Charged magenetic particles?
b) Solar storms?
c) Earth's magenetic field?
d) Something else?
explanation (courtesy of NASA)
image credit: Rodrigo Roesch
NEVILLE PUBLIC MUSEUM ASTRONOMICAL SOCIETY 
NPMAS club meetings, first Wednesday 6:30 to 8:30pm Neville Public Museum 210 Museum Place, Green Bay, WI 54303