The same super-fast laser techÂnolÂoÂgy that sent clear images of Mars back to Earth just cleared anothÂer hurÂdle closÂer to home by sendÂing an image of the Mona Lisa to the surÂface of the moon and back again.
SciÂenÂtists at NASA wantÂed to know whether they could use laser pulsÂes to “comÂmuÂniÂcate” with the lunar surÂface using the same tool that tracks the posiÂtion of the Lunar ReconÂnaisÂsance Orbiter.
The team sent a digÂiÂtized verÂsion of Leonardo’s famousÂly inscrutable sigÂnoÂra from the GodÂdard Space CenÂter in MaryÂland 240,000 miles up to a laser transÂmitÂter aboard the orbitÂing spaceÂcraft. PixÂels travÂeled one at a time and were adjustÂed for brightÂness by conÂtrolled delays in their arrival time. The team corÂrectÂed errors in the image using comÂmon DVD and CD techÂniques.
PretÂty much everyÂbody knows what the Mona Lisa looks like, so maybe that’s why they picked her face, instead of, well, mine. Maybe NASA is hopÂing her name will be changed to Moona Lisa.
The Lunar ReconÂnaisÂsance Orbiter (explained above) began its lunar orbit nearÂly four years ago. Laser pulsÂes beam down to the moon and then bounce back to form images of the surÂface. Like those starÂtling picÂtures of Mars, laser techÂnolÂoÂgy is helpÂing develÂop a crysÂtal clear topoÂgraphÂiÂcal map of the moon, includÂing the tracks of two astroÂnauts’ unsucÂcessÂful trek to the top of a crater and the site of a lost RussÂian rover.
The Mona Lisa’s trip to the moon is imporÂtant because the image was sent at the same time as laser pulsÂes that track the craft’s position—the first outÂer space conÂferÂence call—and it sets the stage for future high-data transÂmisÂsions between Earth and its satelÂlite explorÂers.
via The Atlantic
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Kate Rix writes about digÂiÂtal media and eduÂcaÂtion. VisÂit her at .
Kate,
thank you for this realÂly cool post! :-)
The Moon is still quite a bit short of planÂeÂtary disÂtances, but still Moona Lisa is a very fasÂciÂnatÂing project.