442: Destroy and Rebuild Pt. 6: Magnetic Pole Reversal
Astronomy Cast - Un podcast de Fraser Cain and Dr. Pamela Gay - Les lundis
442: Destroy and Rebuild Pt. 6: Magnetic Pole Reversal Astronomy Cast 442: Destroy and Rebuild Pt. 6: Magnetic Pole Reversal by Fraser Cain & Dr. Pamela Gay
