Nina Sen

Astrophotographer Adam Woodworth took this image of an aurora from Norstead, a Viking village replica.

This stunning image of a purple and gold aurora was taken by Jason Matias at the Wild Horses Monument on the Columbia River Gorge in Washington.

Photographer Jeffrey Berkes took this image from Cannon Beach in Oregon around the Haystack Rock Bird Sanctuary.

The Earth's precession is captured in stunning detail in this image by astrophotographer Miguel Claro from inside the Mourão Castle, in the Dark Sky Alqueva Reserve.

Astrophotographer Giuseppe Petricca took this image of the ISS, the Moon, Venus, Mars, Mercury and the Leaning Tower of Pisa from Pisa, Tuscany, Italy.

Astrophotographer A. Garrett Evans took this image of the Milky Way over Popham Beach State Park in Maine the morning of April 18, 2015 as a 9-shot panorama.

This image of the Bubble Nebula was taken by astrophotographer Jaspal Chadha from London.

The striking arms of the Whirlpool galaxy can be seen in stunning detail in this astrophotographer image by Jaspal Chadha.

Mamtani took the image in Borrego Springs, California during the weekend of April 17, 2015.

This amazing image of the Northern Lights was a lucky shot for astrophotographer Manish Mamtani. Mamtani took the image from Long Lake Recreation Area in Wisconsin on Match 17, 2015.

Greg Diesel took this image of the moon over the Bodie Island Lighthouse in the Outer Banks of North Carolina.

Astrophotographer Miguel Claro took this image between the Giant’s Causeway, near Bushmills, in northeast coast of Northen Ireland on March 20, 2015.

Zodiacal lights shine across the horizon in this stargarzer image. Photographer Jeffrey Berkes took the image over the Florida Keys in 2012.

Astrophotographer A. Garrett Evans took the image Loon Island Lighthouse on Lake Sunapee in Sunapee, New Hampshire on Feb. 28, 2015.

Night sky photographer Connor Hicks submitted these magnificent photos of star trails and a moon halo. See how Hicks created the amazing view.

Astrophotographer Miguel Claro took the image from Juromenha, Dark Sky Alqueva Reserve, Portugal on Jan. 11, 2015.

Astrophotographer Jason Matias captured this gorgeous night view of the moon setting between sea stacks.

Astrophotographer Navaneeth Unnikrishnan captured the Trifid Nebula from Karnataka, India.

Amateur astronomer Keith Hanssen took this image of the Orion Nebula in November from Montana.

Amateur astrophotographer Béla Papp took this picturesque moonlit scene near the village of Óbánya in southwest Hungary.

Astrophotographer Jaspal Chadha took this image over four nights in December 2014 and January 2015.

This stunning image shows a bright supernova in the Superwind galaxy taken on Jan. 2 by astrophotographer Justin Ng.

This spectacular image is of the newfound Comet Lovejoy taken just before the new year. Astrophotographer Justin Ng took the image from Singapore on Dec. 29, 2014.