NASA will launch rockets into the annular solar eclipse's shadow on Oct. 14
A NASA mission called APEP will launch three sounding rockets into the annular solar eclipse to measure changes in electric and magnetic fields, density, and temperature of the ionosphere.
TroibNews 
A NASA mission called APEP will launch three sounding rockets into the annular solar eclipse to measure changes in electric and magnetic fields, density, and temperature of the ionosphere.
