Space.com: NASA, Space Exploration and Astronomy News @space.com@web.brid.gy · activity timestamp 4 weeks ago How Earth's atmosphere and climate come together to create a polar vortex To understand what Americans are experiencing with this winter blast, we need to look more than 20 miles above the surface of Earth, to the stratospheric polar vortex. Read more Read less Translate Translate alt Sorry, no caption provided by author Sorry, no caption provided by author Reply Boost or quote Boost Quote You cannot quote this post Like More actions Copy link Flag this post Block