Earth's Surface | smithsonianmag.comhttps://www.smithsonianmag.com/rss/tag/earths-surface/RSS feed for Earth's SurfaceenMon, 19 Oct 2026 15:01:46 +0000Earth's True North and South Poles Have Wandered Four Times Over the Past 320 Million Years, Study Suggestshttps://www.smithsonianmag.com/smart-news/earths-true-north-and-south-poles-have-wandered-four-times-over-the-past-320-million-years-study-suggests-180989698/The phenomenon, which involves the geographic poles, is distinct from when the magnetic poles move. The planet's solid crust and molten mantle occasionally shift and subsequently reorient themselves during what's called true polar wanderMon, 19 Oct 2026 15:01:46 +0000https://www.smithsonianmag.com/smart-news/earths-true-north-and-south-poles-have-wandered-four-times-over-the-past-320-million-years-study-suggests-180989698/