"Using powerful transmission electron microscopes at Johns Hopkins' Materials Characterization and Processing facility, Ken Livi, a research scientist in the Whiting School's Department of Materials Science and Engineering, examined solids in samples of Blood Falls' water and found an abundance of tiny, iron-rich nanospheres that oxidize, turning the water seemingly gory."
I was blocked from presenting anything from NOVA but....it appears they are allowing this intro vid...the next video will be EXTREMELY detailed analysis of the fluids and source possibilities.