Spooky Eclipse of the Harvest Moon

Source - Space Weather News for Sept. 15, 2016: http://spaceweather.com

SPOOKY ECLIPSE OF THE HARVEST MOON:  According to folklore, this Friday's full Moon is the Harvest Moon.  For many observers, the usual luster of the silver orb will be dimmed by a spooky shadow as the Moon experiences a "penumbral lunar eclipse."

Visit http://spaceweather.com for visibility maps and a cool animation.

EARTH'S MAGNETIC FIELD CAUGHT RINGING LIKE A BELL:  This week a magnetic observatory in Norway recorded almost pure sinusoidal oscillations in Earth's magnetic field--a phenomenon unlike normal geomagnetic storms. The magnetic "ringing" was accompanied by equally sinusoidal electric currents flowing through the ground. The data and underlying physics are highlighted on today's edition of http://spaceweather.com.