Ransom appears very similar to Lewis himself: a university professor, expert in languages and medieval literature, unmarried (Lewis did not marry until his fifties), wounded in World War I and with no living relatives except for one sibling. Lewis, however, apparently intended for Ransom to be partially patterned after his friend and fellow Oxford professor J. R. R. Tolkien, since Lewis is presented as novelizing Ransom’s reminiscences in the epilogue of Out of the Silent Planet and is a character-narrator in the frame tale for Perelandra.  In That Hideous Strength Ransom, with his royal charisma and casual acceptance of the supernatural, appears more like Charles Williams (or some of the heroes in Williams’s books). 
The new findings are an independent line of evidence that hydrothermal activity is taking place in the subsurface ocean of Enceladus. Earlier results, published in March 2015, indicated hot water is interacting with rock beneath the sea of this distant moon. The new discoveries support that conclusion and add that the rock appears to be reacting chemically to produce the hydrogen.
Each of the little Space eggs resides within its own ring arc--which is a fragmentary ring of Saturn. One hypothesis states that glittering ice crystals swarming around in the ring arc might be floating down to the surface of Methone, filling in its impact craters or other rough topography. This is something that is thought to have occurred on two other small, icy moons of Saturn--Atlas and Pan. Icy stuff swarming around in Saturn's rings apparently piled up around each moonlet's equator.
Titan has three large seas. However, the seas of Titan are not filled with water, but are filled instead with swirling liquid hydrocarbons. All three of Titan's exotic seas are close to its north pole, and they are surrounded by many smaller hydrocarbon-filled lakes in the northern hemisphere.