We should be more concerned with platinum-group elements on asteroids (ruthenium, rhodium, palladium, osmium, iridium, platinum). We've had to allocate agile s

We should be more concerned with platinum-group elements on asteroids (ruthenium, rhodium, palladium, osmium, iridium, platinum). We've had to allocate agile scientific minds to reduce the use of expensive platinum-group metals in fuel cells in order to make them cost effective: https://www.google.com/amp/s/phys.org/news/2018-12-scientists-maximize-effectiveness-platinum-fuel.amp https://www.google.com/amp/s/phys.org/news/2018-12-scientist...