
Let's Clean Up The Space Junk!
Humans have been using the Earth for a trash can for as long as we’ve been on it, but it’s now come to the attention of many that we are also polluting the space lanes around our world.
Did you know that since the Russians first shot the Sputnik satellite into space that we’ve littered up the orbit of our planet with more than a ton of man-made items? Some estimated put it at more than 600,000 piece of assorted space trash that is larger than a centimeter and no one seems to be keeping track of even 10 percent of it.
There’s everything from tiny pieces of shuttle skin that peels off when it comes back into orbit to the lunar modules left on the moon during the Apollo moon missions. Plus, military missions like the Chinese satellite that was blown up by missiles in 2007 was said to have created a huge debris cloud of as many as 300,000 more tiny little pieces of space junk. Sure, they are small, but even these could cause damage to existing orbiting satellites or future space missions.
So, we know we have this huge blot on our own backyard, so how do we clean it up?
One way might be through a giant space net, sort of like a huge fish net to scoop up all the trash and litter floating around the Earth. It’s not science fiction. A Japanese company is looking into deploying a Japan Aerospace Exploration Agency satellite that would then release a net made of micro-thin, three layers of metal threads made by Nitto Seimo Co, which makes fishing nets. It would form around the trash like a fish net forms around a school of fish in the ocean, draw it back towards the Earth, and then it and the trash would burn up in the planet’s atmosphere.
Neat, clean and efficient.
The idea of a net is because that would catch the smallest pieces of the space debris, which floats around out there and could make holes in legitimate satellites, spacecraft or other expensive gear that we need to remain in space and working.
What’s utterly amazing is that there are so many people that don’t think there is a problem. Especially since billions and billions of dollars worth of valuable gear has to navigate around the debris clouds every day. Plus, it’s blocking valuable real estate that future satellites will need to orbit in.
Another similar net idea is being developed by the Defense Advanced Research Projects Agency ( DARPA), an agency of the United States Department of Defense. They are developing a space garbage collecting vehicle that would be armed with 200 special nets to collect the space trash.
Called, the Electrodynamic Debris Eliminator, or EDDE, it was created by Star Inc. It would fly in low Earth orbit and pick up trash as it traveled. It’s estimated it could pick up more than 2,000 piece of debris in seven years. That’s only a drop I the bucket, but it at least would be a start. The debris could be then burned up during re-entry, recycled or thrown into the ocean (not a good idea!). Star says they could do a first test run of the EDDE as soon as 2013.
All in all the main issue in getting rid of all this mounting space trash is likely money. Cleaning it all up will be very expensive for sure. However, something needs to be done and the sooner the better.
Let’s hope that either Japan’s giant space net or the EDDE bunch of smaller nets can work together to make Earth’s backyard of space a cleaner place.
Besides, do we really want the aliens out there turning their noses up at the Earth and saying all we do is litter and make a mess? What kind of bad example is that for the rest of the universe?