Today marks the Winter Solstice, the day of the year when the Earth's Northern Hemisphere is tilted furthest away from the sun, meaning it's the shortest day and longest night. This animation, captured by National Oceanic and Atmospheric Administration (NOAA)’s GOES-19, shows a timelapse of Earth’s rotation from Oct. 3 to Dec. 20, 2024. It highlights the gradual shift in Earth's tilt relative to the sun and the changing position of the terminator—the line dividing day and night—as the Northern H