An explosion of colors lights up the evening sky as a rare double "moonbow" meets the northern lights in this stunning, star-speckled view.
Gorgeous purple and gold auroras light up the sky in these stunning images taken during a geomagnetic storm.
Astrophotographer Rogelio Bernal Andreo took this image of the Andromeda Galaxy framed by gas and dust clouds that lie inside our own Milky Way galaxy.
Astrophotographer Ron Brecher took this image of the Little Dumbbell Nebula earlier this year from Guelph, Ontario.
Astrophotographer Adam Gordon took this image of star trails from Anza Borrego Desert State Park on the night of September 30, 2016.
Astrophotographer Jeffrey O. Johnson took this image of Barnard 343 from his backyard in Las Cruces, New Mexico.
John Chumack took this image of the Aurora Borealis on a 2016 trip to Alaska, an annual event for him and a group of skywatchers.
Astrophotographer Mike Killian took this image of Venus and the crescent moon on Dec. 2, 2016 from Toronto.
Astrophotographer Jeff Warner took the image of the supermoon rising over Denver as captured from Green Mountain in Lakewood, CO on Nov. 14, 2016.
Warren Keller and Steve Mazlin took this image from Star Shadows Remote Observatory PROMPT2 CTIO near La Serena, Chile.
Greg Diesel Walck took this image of Jupiter and the Moon from Moyock, North Carolina as a thunderstorm drifted across the horizon on August 5, 2016.
Astrophotographer Jeff Berkes took this image from Assateague Island National Seashore along the eastern shores of Maryland on Nov. 5, 2016.
This image of M33 was taken by astrophotographer Chris Schur taken from Payson, Arizona in October 2016.
Barbara Matthews took this image the first week of August from Donner Summit, a mountaintop on the northern Sierra Nevada range.
Astrophotographer John Chumack took this image of the Helix Nebula in September 2016 from Dayton, Ohio.
Astrophotographer Ron Brecher took this image of the Veil Nebula complex from Guelph, Ontario on September 21, 2016.
Astrophotographer Ron Brecher took this image of NGC 669, a "polar ring galaxy", from Guelph, Ontario on September 19, 2016.