UFO News

Astronomy Picture of the Day features a composite image of the night sky above the old faithful geyser in Yellowstone National Park. The colorful pool of water is known as Silex Spring, illuminated artificially, with colors caused by layers of bacteria that grow in the hot spring.

Steam rises off the spring, heated by underground magma associated with the Yellowstone Hotspot. Unrelated and far in the distance, the central band of our Milky Way Galaxy arches high overhead, a band lit by billions of stars.

The picture features a 16-image panorama taken in 2014. If the Yellowstone Hotspot causes another supervolcanic eruption as it did about 640,000 years ago, a large part of North America would be affected.