Researchers in England found in glacial subglacial tunnels gigantic proportions. Height channels slowness over 100 kilometers is 250 meters. Geologists were able to recognize them under a kilometer layer of ice with a radar scan. Details are presented in the article the researchers, published in the journal Nature Geoscience.
The discovery was made by the study of satellite images data, and radar scanning the investigated area. On the pictures taken from orbit, scientists noticed riverbed channels to the naked eye, in spite of the enormous thickness of the layer of ice that covers them. Read the rest of this entry »