We've reported on all kinds of wacky ideas for capturing and deorbiting space debris safely. From electric tethers to lasers, ...

RMIT University researchers have tested a more effective way to capture microplastics from wastewater, using a combination of microbubbles and nanobubbles to achieve removal rates of more than 90%.

They're microscopic materials that have been linked to some health defects, and they typically come from household appliances ...