What aliens could learn from the stuff we’ve left in space

Even in space, where none of us live, some of what we’ve left is space junk: stuff orbiting the earth that nobody particularly intended to leave anywhere. But much of what we’ve left in space is intentional. Some of it is symbolic artifacts intended for an audience of people here on Earth - the fallen astronaut, the American flag on the moon, a CD containing a list of over half a million people who wanted to send their names to a comet, courtesy of a NASA probe. In some cases, however, we are also sending a deliberate signal out beyond Earth, to be received by forces unknown. Rather than just listening for radio signals, which has been a staple of the Search for Extraterrestrial Intelligence, some earthlings have become interested in actively reaching out - broadcasting radio messages to anyone, or anything, out there that might be able to hear them. For reasons that are perhaps obvious, these are controversial projects.

In a meeting today in Sacramento, commissioners might vote to register items left behind on the moon by Apollo astronauts "as an official State Historical Resource," the L.A. Times reports.

After all, "California law allows listing historical resources beyond the state's borders—even if it's more than 238,000 miles away."

  Some of the 5,000 pounds of stuff Neil Armstrong and Buzz Aldrin abandoned at Tranquility Base was purposeful: a seismic detector to record moonquakes and meteorite impacts; a laser-reflection device to make precise distance measurements between Earth and the moon; a U.S. flag and commemorative plaque. Some was unavoidable: Apollo 11's lunar module descent stage wasn't designed to be carted back home, for instance.

"They were told to jettison things that weren't important," anthropologist Beth O'Leary, "a leader in the emerging field of space heritage and archaeology," tells the newspaper. "They were essentially told, 'Here's eight minutes, create an archaeol

The planned October 9, 2009 bombing of the moon by a NASA orbiter that will bomb the moon with a 2-ton kinetic weapon to create a 5 mile wide deep crater as an alleged water-seeking and lunar colonization experiment, is contrary to space law prohibiting environmental modification of celestial bodies. The NASA moon bombing, a component of the LCROSS mission, may also trigger conflict with known extraterrestrial civilizations on the moon as reported on the moon in witnessed statements by U.S. astronauts Buzz Aldrin and Neil Armstrong, and in witnessed statements to NSA (National Security Agency) photos and documents regarding an extraterrestrial base on the dark side of the moon.

If the true intent of the LCROSS mission moon bombing is a hostile act by NASA against known extraterrestrial civilizations and settlements on the moon, then NASA and by extension the U.S. government are guilty of aggressive war which is the most serious of war crimes under the U.N. Charter and the Geneva Co

jurvetson

Behind the counter of an abandoned McDonalds lie 48,000 lbs of 70mm tape… the only copy of extremely high-resolution images of the moon.

These tapes were recorded 40 years ago by Lunar Orbiter 1 to map the lunar surface to plan landing spots for Apollo 11 onward. They have never been seen by the public because at the time, they were classified as they reveal the extreme precision of our spy satellites. Instead, all we have ever seen are the grainy photo-of-a-photo images that were released to the public.

The spacecraft did not ship this film back to Earth. Instead, they developed the film on the Lunar Orbiter and then raster scanned the negatives with a 5 micron spot (200 lines/millimeter resolution) and beamed the data back to Earth using yet-to-be-patented-by-others lossless analog compression. Three ground stations on Earth (one was in Madrid) recorded the transmissions on these magnetic tapes.

Recovering the data has proven to be very difficult, requiring technological archeology. The only working version of the Ampex tape player ($300K when new) was discovered in a chicken coop and restored with the help of the original designer. There is only one person on Earth who still refurbishes these tape heads, and he is retiring this year. The skills to read this data archive are on the cusp of disappearing forever.

Some of the applications of this project, beyond accessing the best images of the moon ever taken, are to look for new landing sites for the new Google Lunar X-Prize robo-landers, and to compare the new craters on the moon today to 40 years ago, a measure of micrometeorite flux and risk to future lunar operations.