Count of geysers seen on Saturn’s moon Enceladus up to over 100 – No question about composition of jets, definitely water as we know it. A question now of how far down they come from. Data collected by Cassini spacecraft in orbit around Saturn.
Let’s look at the moon – First, light takes 1.5 secs to reach earth from the moon; we see it as it appeared 1.5 seconds ago. Next, circular features are impact features created when meteors and small or large asteroids crashed onto the moon. Big one at the bottom with rays is Tycho – 52 miles wide, 3 miles deep, 1.3 miles high. ‘Crater’ coined by Galileo to describe pockmarks. Dark regions are younger, light regions are lunar highlands and much older. Use binoculars to see details at first quarter, not full moon – too bright to observe then.