In this dreamy moonlit scene, the Super Snow Moon rises over the Pena Palace (Palácio da Pena), a 19th-century, Romanticist hilltop castle overlooking the town of Sintra, Portugal.
In this panoramic view of Niagara Falls, a golden moon rises against the pink band of the anti-twilight arch, an atmospheric phenomenon also known as the "Belt of Venus."
Bright Earthshine illuminates the waning crescent moon as Saturn peeks over its upper limb in this night-sky photo taken shortly after the moon occulted the planet on Feb. 2.
Venus, Jupiter and the full moon light up the morning sky in this panoramic photo captured during the final stage of the "Super Blood Wolf Moon" total lunar eclipse on Jan. 21, 2019.
In this deep-space photo, the bright-green Comet 21P/Giacobini-Zinner blazes across a sparkling star field, passing by the open star cluster M37 as it makes its way through the Auriga constellation.
A colorful panorama that looks like the view from inside an astronaut's helmet shows the breadth of the Milky Way galaxy as it stretches across the night sky from one horizon to the other.
The Red Planet makes a close approach to the blood-red moon in this photo taken during the longest total lunar eclipse of the century, on July 27, 2018.
A colorful high-resolution mosaic of the full moon reveals slight differences in the chemical constitution of the lunar surface.
Meteors, star clusters and a naked-eye comet light up the sky over Portugal in this full-dome fisheye photo captured during the Geminid meteor shower of 2018.
A deep-space panorama shows Comet 46P/Wirtanen, the Pleiades star cluster and a meteor crossing in front of the California Nebula.
A photo time-lapse sequence shows the path of totality during the Super Blood Wolf Moon of Jan. 20-21, 2019, ending with a lunar corona.
A vertical panorama of the night sky reveals a colorful sea of stars glistening above an old Dutch sailboat in Portugal's Lake Alqueva.
A full-dome fisheye view shows 180 degrees of the night sky over the United Kingdom's Peak District on a crystal-clear winter night.
A beautiful crescent moon with visible earthshine forms a triangle with the Pleiades star cluster and the bright planet Venus just after sunset in this twilight scene.
A twilight scene shows a 96 percent illuminated moon peeking through the clouds behind the Roman Catholic Church of La Sagrada Familia, in Barcelona.