Thursday, July 25, 2013

Snapshots from the Moon and Cislunar Space

Apollo 17 commander Eugene Cernan (UR, LR), CM pilot Ron Evans (UL, LR) and LM pilot and geologist Harrison "Jack" Schmitt (LL) relaxing in the Apollo 17 Command Module America after Cernan and Schmitt returned from three days of exploring the magnificent Taurus Littrow valley, the last manned expedition to the lunar surface 40 years ago, December 1972 [NASA/ Arizona State University].
Mark Robinson
Principal Investigator
Lunar Reconnaissance Orbiter Camera
Arizona State University

This year, we commemorate the forty-fourth anniversary of the first human lunar landing. By now, the whole world is very familiar with the high-quality Hasselblad snapshots taken by the Apollo astronauts during their voyages. However, 35-mm cameras were also carried on some of the Apollo missions for both surface and orbital imaging. Most of the surface 35-mm images are extreme closeups of the lunar regolith from the Apollo Lunar Surface Closeup Camera (ALSCC; Apollo 11, 12, 14); sometimes called the Gold Camera after its Principal Investigator Thomas Gold.

The Nikon camera used on board the Apollo Command Module was equipped with a 55-mm lens and was loaded with either black-and-white or color film. During Apollo missions 16 and 17, black-and-white film was used for dim-light photography of astronomical phenomena and lunar surface targets illuminated by Earthshine. During Apollo 17, color film was used for documenting various activities in the Command Module.

The 35-mm frames are now scanned as part of a joint project between Arizona State University and the NASA Johnson Space Center to scan all of the original Apollo flight films.

Boot print anaglyph - Stereo anaglyph (get out your red-blue stereo glasses!) AS14-77-10369a,b from the ALSCC showing extreme detail of an astronaut bootprint in the fine-grained lunar regolith. The original field of view is about 3 inches on a side [NASA/Arizona State University].
The Apollo 17 crew seems to have had the most fun with the 35-mm format! Gene Cernan, Ron Evans and Jack Schmitt snapped quite a few spectacular black-and-white images showing the view out of the window of their Command Module, the America. Some of these images are a bit grainy, resulting in a very different feeling than the crisp Hasselblad photographs. They also took numerous color candid shots inside the Command Module. It is rare to see such carefree moments during the Apollo missions, but you can feel the relief and happiness after the astronauts so successfully fulfilled their surface mission!

Reiner Gamma illuminated solely by earthshine (35-mm Apollo 17) - Reiner Gamma, one of the enigmatic lunar swirls; their origin is related to localized magnetic fields within the crust AS17-158-23894 [NASA/Arizona State University].
Many of the window shots present an oblique view across lesser known regions of the Moon. The terminator (boundary between night and day) scenes are always captivating. Look closely at the scene below; near the center is a shallow-sloped scallop-shaped rise. Just below and to the right are two other smaller rises - perhaps these are low shield volcanoes? You can dig deeper by visiting the LROC QuickMap browser and see if the NAC images can elucidate what is seen here (Natasha crater is at 19.973°N, 328.843°E).

Mare Imbrium meets Mare Procellarum (Apollo 17 35-mm frame) a complex region composed of nearly buried peaks that are part of the Imbrium rim, impact craters, and volcanic forms. Annotated AS17-160-23992 [NASA/Arizona State University].
Relive the incredible adventure that was Apollo, browse the Apollo 35-mm archive and the rest of the Apollo scans (Metric, Pans; Hasselblads to follow next year). While browsing, map out your own next mission to the Moon! The hard part is figuring out where to visit next. Enjoy!

Related Posts:
Project Mercury Photography Now Online
Project Gemini Comes to Life
Reiner Gamma Constellation Region of Interest
Mare Ingenii Swirls

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