What we can learn from space trash
Today's guest blog is authored by Lauren Phipps of GreenBiz. The original posting can be found here.
About once every year, the International Space Station has to alter its course, ever so slightly, to avoid a potentially mission-critical collision with a piece of space trash. These unwanted flying objects — more formally known as orbital debris — are human-made items that no longer serve any useful purpose, both intentionally and unintentionally left to orbit in perpetuity.
Derelict spacecrafts and satellites, payload carriers, motor effluents, bolts and fragments of paint chips: Orbital debris runs the gamut from more substantial litter — about 23,000 pieces larger than 10 cm — to smaller debris — about 500,000 items between 1 and 10 cm in diameter — to the infinitesimally tiny — over 100 million particles larger than 1 mm. So next time you look up at the night sky and consider your place in the universe, consider that 8,000 metric tons of junk are swirling around above you.
It’s a tale as old as time. As the…