Earth's Mantle | smithsonianmag.comhttps://www.smithsonianmag.com/rss/tag/earths-mantle/RSS feed for Earth's MantleenFri, 08 May 2026 18:48:52 +0000East Africa Might Break Off From the Continent Sooner Than Scientists Thought—and a New Ocean May Fill the Gaphttps://www.smithsonianmag.com/smart-news/east-africa-might-break-off-from-the-continent-sooner-than-scientists-thought-and-a-new-ocean-may-fill-the-gap-180988659/A new study suggests that a rift in Kenya and Ethiopia has reached a critical stage in the split-up process, and that water may flood it in a few million yearsFri, 08 May 2026 18:48:52 +0000https://www.smithsonianmag.com/smart-news/east-africa-might-break-off-from-the-continent-sooner-than-scientists-thought-and-a-new-ocean-may-fill-the-gap-180988659/