Located deep in South Texas against the border of Mexico, Big Bend National Park has some of the darkest skies in the continental United States. For several weeks in the winter, very faint Zodiacal light is visible a few hours after sunset above the horizon where the sun sets. It’s an uncommon and beautiful celestial phenomenon that I’ve witnessed only several times and I had the pleasure of observing it on this trip. The color and shape of the wintering ocotillo provides a contrast with the brilliantly colored sky pattern and black foreground in this minimalist desert scene.