Should we be worried about shifting magnetic poles? What's Hidden Inside Planets is the title of a new book by Johns Hopkins Professor of Planetary Physics Sabine Stanley. What are we learning about the mysteries? Dr. Stanley chats with Techstination's Fred Fishkin Use promo code HPLAN for 30% off What’s Hidden Inside Planets? when you order from Hopkins Press. https://www.press.jhu.edu/books/title/12879/whats-hidden-inside-planets?utm_source=radio_tour&utm_medium=podcast_radio_promo&utm_campaign=f23_stanley_hplan