In the early 2000s "it was basically a machine the size of a fist that spat ions from a very hot plasma ball through a magnetic nozzle at a very high velocity," and the researchers are now hoping to achieve the same effect by recycling the magnesium in space junk.
Raspberry Pi founder and CEO Eben Upton has responded to questions submitted by Slashdot readers. Read on for his answers.
Slashdot reader MarkWhittington shares an article from Blasting News: In the meantime, Nanoracks, a company that is already handling some of the logistics for the ISS, is proposing a commercial airlock for the ISS. The development of commercial space stations, as well as commercial spacecraft such as the SpaceX Dragon and the Boeing Starliner, constitutes NASA's long-term strategy of handing off low-Earth orbit to the private sector while it concentrates on deep space exploration.