fishstickmonkey:

A thin solar prominence appeared above the Sun, then sprouted numerous streams of plasma back into the Sun before disappearing a day later (July 28-29, 2014). The prominence and its streams are being controlled by forces associated with strong magnetic fields beneath the prominence. These images were taken in extreme ultraviolet light. Credit: Solar Dynamics Observatory/NASA. (via SDO | Solar Dynamics Observatory)
tichoslapek:

Seen here is one of the more spectacular scenes of the Aurora Borealis that was photographed by one of the space station crew members aboard the International Space Station from an altitude of approximately 223 nautical miles. 
Image Credit: NASA
gravitationalbeauty:

The Case of the Missing Aurora
gravitationalbeauty:

Blood Moon 2014 by Melanie Davis
from-the-earth-to-the-moon13:

Apollo 15 Completes 2nd Lunar EVA (1 Aug. 1971) —- Astronaut David R. Scott, commander, gives a military salute while standing beside the deployed United States flag during the Apollo 15 lunar surface extravehicular activity (EVA) at the Hadley-Apennine landing site. The flag was deployed toward the end of EVA-2. The Lunar Module (LM), “Falcon,” is partially visible on the right. Hadley Delta in the background rises approximately 4,000 meters (about 13,124 feet) above the plain. The base of the mountain is approximately 5 kilometers (about three statue miles) away. This photograph was taken by astronaut James B. Irwin, lunar module pilot. While astronauts Scott and Irwin descended in the LM to explore the moon, astronaut Alfred M. Worden, command module pilot, remained in lunar orbit in the Command and Service Modules (CSM).
gravitationalbeauty:

The Waterfall and the World at Night