APOD 4.8: The Sky from Mauna Kea

Looking out over the volcano Mauna Kea, we see a blanket of white clouds, and on the far left, glow from a Hawaiian city. The volcanic lava lights up orange from an erupting Kilauea, just left of the center. The summit of a more distant volcano, Mauna Loa, is visible in dark silhouette near the middle of the horizon. Green airglow is visible above the clouds caused by air molecules excited during the day. The Milky Way galaxy also extends up straight through the middle. 

APOD 4.7: An Unexpected Aurora over Norway

On February 8, 2014 in Norway, an astrophotagrapher and his brother were packing up their equipment after a disappointing night of looking for auroras, when suddenly the sky exploded with them. This auroral flare lasted only a few minutes. 

APOD 4.6: Space Station over Lunar Terminator

Positioned to the side of the moon is the International Space Station. This picture was taken in front of a partially lit moon last year in Madrid, Spain, with and exposure time of only 1/1000 of a second. The duration of the transit of the ISS across the entire Moon was about half a second. The station is located on the dark side of the day/night line of the Moon called the terminator.