It is very clean ice, with is shielded by another 1.5 km of ice on top and that ...

		petschge on Jan 16, 2020 \| parent \| context \| favorite \| on: SpaceX tests black satellite to reduce ‘megaconste... It is very clean ice, with is shielded by another 1.5 km of ice on top and that is filled with more than 5000 photomultipliers.