A full Milky Way arc over Aspen, Colorado, showing the cluster of the Moon, Jupiter, Venus and the pleiades cluster with faint auroras
Mesmerising: The 2012 Perseid Meteor shower over Denver, Colorado, from the summit of the Mount Evans
Camping under the Geminid Meteor shower on Richmond Ridge near Aspen Colorado
Spectacular: The winter moonrise at the Maroon Bells near Aspen, Colorado
A faint Aurora Borealis reflected in a seasonal pond on Taylor Pass just outside Aspen in Colorado
Cosmic wonders: The Alpenglow on the Maroon Bells from moonrise
A self portrait of Thomas O"Brien while photographing Highlands Bowl from Richmond Ridge near Aspen, Colorado
Thomas O"Brien under the Milky Way at Great Basin National Park in Nevada (left) and a meteor shooting over a rock arch (right)
Out of this world: The night sky over the fall colours of Kebler Pass in Colorado
The Maroon Bells near Aspen, Colorado: This spectacular series of images show some of the most beautiful cosmic wonders from meteor showers to rare star displays
The Perseid meteor shower from Lincoln Creek camp ground near Aspen, Colorado