Humans have left approximately 400,000 pounds (181,000 kilograms) of "trash" on the lunar surface. That includes probes, rovers, landers, a metallic olive branch, a hammer and falcon feather (for a gravity experiment, image below), two golf balls, a javelin, a urine collection assembly (small), various rakes and hammer, a portrait of James Irwin, 100 $2 bills, flags, and so many more items. In fact, here is NASA's list of manmade objects on the moon, although it hasn't been updated in 6 years. From Space.com:
Although many people might call the odds and ends humans have left on the moon "garbage" (what else would you call a used urine-collection assembly?), NASA takes a kinder view.
Researchers can study these objects to see how their materials weathered the radiation and vacuum of space over time, (NASA chief historian William) Barry said. Moreover, some of the objects on the moon are still being used, including a laser-range reflector left by the Apollo 11 crew. [What Does the Top of the Moon Look Like?]
Researchers on Earth can ping this reflector with lasers, which allows them to measure the distance between Earth and the moon, according to NASA. These experiments helped scientists realize that the moon is moving away from the Earth at a rate of 1.5 inches (3.8 centimeters) a year, NASA reported.
The so-called trash left on the moon also has archaeological merit, Barry said. Future lunar visitors may want to view the old Apollo sites and see gear from NASA, the European Space Agency, the Russian space agency Roscosmos and other countries, Barry said.
"How much trash is on the Moon?" (Space.com)
Earth, Mars and now Titan form an exclusive club among the solar system’s celestial bodies: dust storms. Titan is an intriguing world – in a way quite similar to Earth. In fact, it is the only moon of the Solar System with a substantial atmosphere and the only celestial body other than our planet where […]
Elon Musk’s SpaceX revealed the name of the person who is set to become the first private space tourist to travel to the moon: Yusaku Maezawa.
Since 2011, Andy Gracie has been selectively breeding flies to thrive under the harsh environmental conditions on Titan, Saturn's largest moon: dark, cold (-179.2C), and with very low atmospheric pressure.
Whether you’re heading for a career as a web developer or designer, the road is wide open. Careers in tech won’t be slowing down anytime soon, but it’s important that you keep up. Enter the Complete Learn to Code Masterclass Bundle. An invaluable resource for beginners or budding pros, the bundle teaches must-know development and […]
Sipping on whiskey is already a sophisticated experience, but that doesn’t mean you can’t kick it up a notch. A perfect addition to your desk or home bar, the Eravino Whiskey Globe Decanter features a beautifully etched map on the surface and an eye-catching glass ship inside, bringing an entirely new level of class to […]
Gone are the days when you needed to pore over a 400-page physics textbook to learn about weight ratios, aerodynamics, and all of those other STEM concepts that let us take to the skies. Thanks to Force Flyers’ DIY Building Block Drones, you can foster your STEM knowledge as you build and fly your own functional […]