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The Moon, In Depth

Posted By Bill Dunford

20-01-2015 15:56 CST

Topics: pretty pictures, Lunar Reconnaissance Orbiter, the Moon, 3D

For years, scientists exploring the Earth's moon have benefitted from detailed, three-dimensional views of the lunar landscape. Now, it's easier than ever for anyone to see those same 3D pictures. 

The Lunar Reconnaissance Orbiter is a robotic spacecraft that circles the moon continuously, mapping the surface in gritty detail with its Narrow Angle Cameras. Sometimes, mission managers target a location for 3D imaging by sending the orbiter over the same spot twice, photographing the surface at two different angles. Those two perspectives can be combined to create a stereoscopic view.

One relatively easy way to recreate a sense of depth in those pictures is to split the images into red and cyan components. A viewer can then look at these pictures, called anaglyphs, through red-blue glasses, which have a red lens for the left eye and a blue one for the right. This sends only the correct part of the image to each eye, and the result is like magic: a picture with contours that seem to rise and fall right through the screen or the paper. 

If you don't already have some red-blue glasses, you'll want to get a pair (they're not too hard to come by). The Lunar Reconnaissance Orbiter team at Arizona State University has recently assembled an entire collection of red-blue anaglyphs. See this page and search on the term "anaglyph".

The moon's surface is full of dramatic landscapes, and these 3D views are a fascinating way to explore them. Future robotic rovers and astronauts alike will find data like this to be a valuable guide to their expeditions. In the meantime, we can simply enjoy the incredible pictures. Here are just a few.

Hell Q (Anaglyph)

NASA / GSFC / Arizona State University

Hell Q (Anaglyph)
Hell Q is one of a group of craters on the lunar nearside, named for a Hungarian astronomer. This Lunar Reconnaissance Orbiter narrow angle shot, showing an area only about five kilometers wide, is viewable in 3D using red-blue glasses.

Thales Crater (Anaglyph)

NASA / GSFC / Arizona State University

Thales Crater (Anaglyph)
A Lunar Reconnaissance Orbiter view of the eastern part of Thales Crater. The rugged landscape is viewable in 3D using red-blue glasses. The full crater is about 32 kilometers from rim to rim.

Crater Chain Near Lunar Crater Love (Anaglyph)

NASA / GSFC / Arizona State University

Crater Chain Near Lunar Crater Love (Anaglyph)
Love is a crater on the far side of the moon. The Lunar Reconnaissance Orbiter captured this chain of smaller craters within it, which are about 12 kilometers across. Viewable in 3D using red-blue glasses.

Catena Krafft (Anaglyph)

NASA / GSFC / Arizona State University

Catena Krafft (Anaglyph)
On the edge of the moon's Oceanus Procellarum lies the crater Krafft, which is connected to the crater Cardanus by a crater chain called Catena Krafft. The chain, partially seen here in an image from the Lunar Reconnaissance Orbiter, is about 60 kilometers long. This image is viewable in 3D using red-blue glasses.

Perched Crater in Darwin C (Anaglyph)

NASA / GSFC / Arizona State University

Perched Crater in Darwin C (Anaglyph)
A crater one kilometer wide is perched near the rim of the crater Darwin C on the lunar nearside. You can see the craters' depth in 3D using red-blue glasses, thanks to a stereo pair of images from the high-resolution Narrow Angle Camera aboard the Lunar Reconnaissance Orbiter.
See other posts from January 2015


Read more blog entries about: pretty pictures, Lunar Reconnaissance Orbiter, the Moon, 3D


Bob Ware: 01/22/2015 11:27 CST

Bill - These are beautiful images! Your title is bullseye! If you don't have 3-d glasses I suggest you get a pair. The depth into these craters is mind numbing compared to what you may guess it to be without the glasses!

Bob Ware: 01/22/2015 11:35 CST

I forgot to mention that the shadows in 3-D look like shelves of coal overhanging the crater floor.

Bill: 01/23/2015 01:09 CST

Thanks, Bob. One thing I've noticed is that the depth gets exaggerated if your eyes get too far away from the screen but yes, the images are amazing.

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