@earthspctr on Instagram: "Twice a year in places within the tropics an extraordinary solar event makes shadows almost vanish at midday. In Hawaii this is popularly known as Lāhainā Noon, or Zero Shadow Day — but the underlying science applies wherever the Sun can pass directly overhead.  Here’s how it works: Earth’s axis is tilted about 23.5° relative to its orbit around the Sun. This tilt makes the Sun’s apparent path on the sky move north and south throughout the year. The farthest north the

This Solar Phenomenon Only Happens Twice A Year In Certain Parts of the World