Sunrise at Copernicus Crater
A prominent impact site anchored in the lunar Oceanus Procellarum, Copernicus crater is at the center of this […]
Astronomy
M95: Spiral Galaxy with an Inner Ring
Why do some spiral galaxies have a ring around the center? First and foremost, M95 is one of […]
Stars, Dust, and Gas near NGC 3572
Star formation can be colorful. This chromatic cosmic portrait features glowing gas and dark dust near some recently […]
A Solar Prominence Eruption from SDO
One of the most spectacular solar sights is an erupting prominence. In 2011, NASA’s Sun-orbiting Solar Dynamic Observatory […]
Boulders on Bennu
An abundance of boulders litters the surface asteroid 101955 Bennu in this dramatic close-up from the OSIRIS-REx spacecraft. […]
Deep Field: Nebulae of Sagittarius
These three bright nebulae are often featured on telescopic tours of the constellation Sagittarius and the crowded starfields […]
Planets of the Solar System: Tilts and Spins
How does your favorite planet spin? Does it spin rapidly around a nearly vertical axis, or horizontally, or […]
A Circumhorizontal Arc Over Ohio
Why would clouds appear to be different colors? The reason here is that ice crystals in distant cirrus […]
Atlas, Daphnis, and Pan
Atlas, Daphnis, and Pan are small, inner, ring moons of Saturn. They are shown at the same scale […]
Dark Skies: Turn on the Night
Have you ever experienced a really dark night sky? One common and amazing feature is the glowing band […]