Report: Humans have left 500,000 pounds of ‘trash’ on the moon

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To much disbelief, the moon has been littered by humans with about 500,000 pounds of “garbage,” according to reports from NASA.

Some parts of this "junk" include a gold olive branch, a flag kit, lunar orbiters, a hammer, and a falcon feather, Live Science reports.

But how can this be?

Much of the litter was left by NASA astronauts who landed on the moon between 1969 and 1972 during the Apollo missions. Other sorts of trash are from unmanned space-exploration missions from the United States, Japan, Russia, India and Europe, said William Barry, a NASA chief historian, to Live Science.

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The significant weight of the moon junk belongs to heavy artifacts, such as “five moon ranger and lunar probes, that are still there,” Barry said to Live Science.

The reason these objects were left on the moon was simply because “there wasn’t a lot of thought out into bringing back unimportant equipment.

"The real concern was: Can we get the crew safely to the moon, can they get the samples they need and can we get them back in one piece?" Barry told Live Science.

But the moon trash has actually given NASA researchers another field to study--such as how the materials weather the conditions of radiation and the vacuum of space over time. Barry told Live Science that some objects on the moon are still being used--such as the laser-range reflector left there by the Apollo 11 crew.

NASA released a full list of objects left on the moon . Although, there is likely more since the list has not been updated since 2012, according to Live Science.

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