Astrophoto: Old Faithful Geyser Erupts Under a Starry Sky

The Old Faithful geyser in Yellowstone National Park in the western US is one of the most predictable geographical features on Earth, as it erupts almost every 91 minutes, on the dot. But you can never predict what the night sky will look like overhead. Astroval1 on Flickr captured this gorgeous shot of the stars […]