... and the flag was still there

Bad Astronomy
The entire universe in blog form
Oct. 30 2009 7:30 AM

... and the flag was still there

This is very, very cool: The Lunar Reconnaissance Orbiter, currently orbiting the Moon just 50 km off the surface, has taken more shots of the Apollo 17 landing site... and has seen the actual U.S. flag!

Behold (and salute):

Phil Plait Phil Plait

Phil Plait writes Slate’s Bad Astronomy blog and is an astronomer, public speaker, science evangelizer, and author of Death From the Skies!  

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lro_apollo17flag

[Click to boldly embiggen.]

Well, lookit that! It's fuzzy and small and hard to be sure it's the flag in the picture, but there it is. It does match maps made of the Apollo 17 landing site, so it's definitely the flagpole we're seeing there.

Cooool.

Compare this picture to that taken by the 16mm movie camera on the Ascent Module right after Apollo 17 lifted off the Moon; you can see many of the same features. I spent a minute looking for the rover in the LRO picture, then remembered that the astronauts moved it well off to one side, about 100 meters, before they left the Moon so that the video camera on board could record their ascent (it was remotely controlled from Earth by an operator named Ed Fendell, who had tried to film the launch of Apollo 15's and 16's Ascent Module but missed; with Apollos 15 and 16 technical issues prevented the ascent from being filmed, but with 17 he made it, and that's the movie you always see in documentaries). However, you can see it in this larger overview from LRO:

lro_apollo17_overview

[Again, click to make a giant leap.]

Incredible. The LRO page on this has more details, including comparisons of the images from LRO to ones taken in situ from Apollo 17. Remember too that these LRO images have a resolution of 50 cm (18 inches) per pixel!

Wow. Wowee wow wow.

Back to the flag, there's a curious thing about it. The flag itself was nylon, and that tends to get brittle when exposed to ultraviolet light -- which is relentless and plentiful on the airless Moon (the thermal pounding it's taken between day and night can't help either). I've often wondered what we'll find when we go back to the Apollo landing sites; I half-expect to see red, white, and blue powder off to one side of the flagpole, and no actual flag left on the pole. This picture, as frakkin' amazing as it is, is still just barely too low resolution to be able to say for sure, I think. The shadow is only a pixel or so in size and so it's hard to say what's what.

Still, Holy Haleakala. Apollo 17's flag. I wonder what Gene Cernan and Jack Schmitt thought when they saw this picture. And I wonder when we'll go back.

Tip o' the spacesuit visor to Guillermo Abramson. [Edited to add: Apparently I am late to this game. While catching up on other blogs just now, I saw that both Emily Lakdawalla and Nancy Atkinson already wrote about this!]

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