gravitationalbeauty:

Io in True Color
magictransistor:

Astronaut Alan L. Bean [Lunar Module Pilot]; pauses near a tool carrier during extravehicular activity (EVA) on the surface of the Moon. Commander Charles Conrad Jr., who took the photograph, is reflected in Bean’s helmet visor (NASA), 1969.
explorationimages:

Curiosity:  Slopes of Mt. Sharp (Aeolis Mons), Sol 696 (July 22nd, 2014)
This image was taken by Mastcam: Left (MAST_LEFT) onboard NASA’s Mars rover Curiosity on Sol 696 (2014-07-22 08:07:04 UTC). 

Image Credit: NASA/JPL-Caltech/MSSS
8bitfuture:

Lunar transit, captured from NASA’s Solar Dynamics Observatory.
On July 26, 2014, the moon crossed between NASA’s SDO and the sun, a phenomenon called a lunar transit. This happens approximately twice a year, causing a partial solar eclipse that can only be seen from SDO’s point of view. Images of the eclipse show a crisp lunar horizon, because the moon has no atmosphere that would distort light.

By blending different SDO wavelengths, we can get an enhanced image of the sun. The left image was taken in 304 wavelength, the middle in 171 wavelength, and the right shows the blended result.
spacettf:

Earth and Moon as Viewed by Mariner 10 by NASA on The Commons on Flickr.Tramite Flickr:Collection: NASA Planetary Photo Journal CollectionTitle: Earth and Moon as viewed by Mariner 10Original Caption Released with Image: Mariner 10 was launched on November 3, 1973, 12:45 am PST, from Cape Canaveral on an Atlas/Centaur rocket (a reconditioned Intercontinental Ballistic Missile - ICBM). Within 12 hours of launch the twin cameras were turned on and several hundred pictures of both the Earth and the Moon were acquired over the following days. The Earth and Moon were imaged by Mariner 10 from 2.6 million km while completing the first ever Earth-Moon encounter by a spacecraft capable of returning high resolution digital color image data. These images have been combined at right to illustrate the relative sizes of the two bodies. From this particular viewpoint the Earth appears to be a water planet! The Mariner 10 mission is managed by the Jet Propulsion Laboratory for NASA’s Office of Space Science, explored Venus in February 1974 on the way to three encounters with Mercury-in March and September 1974 and in March 1975. The spacecraft took more than 7,000 photos of Mercury, Venus, the Earth and the Moon. Image Credit: NASA/JPL/Northwester n UniversityOther Information: Mariner 10 Image ProjectAddition Date: 1999-12-21Produced By: Northwestern UniversityMission: Mariner Venus Mercury (MVM)Image #: PIA02441 
gravitationalbeauty:

Planetary Nebula Abell 36 
ageofdestruction:

odyssey: Sunset over the western Pacific, photographed from Apollo 13, April 1970.
Sequence of 9 Hasselblad photographs, starting over the central Pacific. As the Earth turns, eastern Asia (top) and Australia (bottom) come in to view.
Apollo 13 was launched on the 11th April. From the geography visible and sunset times for April 1970, I estimate the sequence covers 2-2.5 hours, most likely ending around 7:30am GMT on the 12th.
At 3am on the 14th, en route to the Moon, Apollo 13’s no. 2 oxygen tank exploded. The planned lunar landing was aborted, and scientists and engineers on the ground were forced to improvise a way to get the astronauts home alive in the damaged spacecraft. 
Apollo 13 finally returned to Earth on the 17th, splashing down in the southern Pacific - just left of twilight at the start of the sequence above.
Image credit: NASA/JSC, c/o LPI. Animation: AgeOfDestruction.