This closeup of a mapping image from the Lunar Reconnaissance Orbiter shows the rolling, bouncing trails left by lunar boulders as they travelled down the slopes of Tsiolkovskiy Crater’s central peak. These boulders, several meters across, lost their footing in the dusty lunar soil at some point and rolled downhill to where they lay now….
Tag: moon
Making a Splash
A recent photo taken by the Lunar Reconnaissance Orbiter Camera (LROC) shows a young impact crater in amazing detail, its half-mile-wide interior littered with fused piles of melted rock and encircled by a spray of dark streamers – the “splash” of melted subsurface material from the impact. Boulders and smaller chunks of rock are scattered…
Shadow Play
A series of images from Cassini shows the 110-mile-wide Janus passing through shadows cast by Saturn’s rings. Janus shares its orbit within the ring system with sister moon Epimetheus. Both are small, rocky worlds…irregularly-shaped clusters of rubble pockmarked by ancient craters and displaying lots of scrapes and gouges, evidence of glancing blows by larger bodies.
Worlds Great and Small
A wonderful raw image from the Cassini spacecraft showing a crescent-lit Saturn and one of its 61 known moons. Honestly I’m not sure which moon this is. Could be Tethys, could be Titan, it’s hard to make out in this wide-angle view. Also in crescent, its night side is dimly lit by reflected “Saturnshine”. Cassini…
A Look Back Home
This image shows the Earth as seen by NASA’s Moon Mineralogy Mapper aboard the Chandrayaan-1 orbiter, India’s first lunar scientific satellite. Earth’s colors appear as super-saturated blue, green and white through the mapper’s eye, which is designed to analyze the composition of the moon’s surface and help look for possible water resources for use by…
A Giant Among Moons
The largest of Jupiter’s 63 known moons and the largest moon in our solar system, Ganymede has twice the mass of our own moon and is even larger than the planet Mercury. Its surface is marked by dark regions which are full of craters and lighter areas lined with ridges. This image was taken by…
The Ring
No, it’s not the final frame of a haunted videotape…it’s a backlit Titan, silhouetted against the sun, photographed by Cassini from over 850,000 miles away. Titan’s upper-level atmospheric haze is illuminated in this image, surrounding the moon high above the cloudtops. The haze is a mixture of complex hydrocarbons created by the breakdown of methane…
It’s a Small World
Another wonderful image from the Apollo Image Gallery, this scanned film image shows the ascent stage of the Eagle lander as photographed by Neil Armstrong, with the partially-lit Earth floating in the black lunar sky above. This is how our world looks from 239,000 miles away. Basically it would look 4 times larger than the…
A Leap for Mankind
“That’s one small step for [a] man, one giant leap for mankind.” After speaking these historic words at 10:56 EDT on July 20, 1969, marking the moment that humanity first placed a foot on a world other than its own, Apollo 11 commander Neil Armstrong began his work documenting the lunar surface before him. The…
Eagle’s Eye View
In the center of this image from the Lunar Reconnaissance Orbiter, there’s a small object casting a shadow toward the right. That object is the remaining section of the Apollo 11 lunar module, Eagle, from which astronauts Neil Armstrong and Edwin “Buzz” Aldrin made history as the first humans to step foot on the moon…
Sunday Best
Another fantastic image of one of my favorite subjects from the Cassini mission: the little shepherd moon Daphnis and its icy wake within the Keeler gap. This is an adjusted version of a raw image taken Saturday, July 11, and received at the imaging center in Boulder, CO later the same day. See the original…
Rhea View
A fascinating bit of work by Gordan Ugarkovic, this is a brief false-color animation of 950-mile-wide Rhea, second-largest moon of Saturn. Rhea is very reflective, indicating that it is made up of a lot of water ice, and is also heavily cratered (clearly evident here.) Water ice behaves like rock at the low temperatures that…
Lights in the Dark 