The first part of the video shows a simple example in which an old relict tiger stripe is believed
to have lost its tip after it was sheared off by tectonic forces and pushed away from its parent by spreading.
The second part of the video demonstrates how this video-reconstruction technique can be used to reconstruct a
possible spreading history
of the region between two tiger stripes: Alexandria Sulcus and Cairo Sulcus. The process begins by snipping-out and closing the gap that corresponds to Alexandria Sulcus and its upraised flanks. The gap is closed by matching the remaining right and left edges like a jigsaw puzzle. - "Reconstructing the Past on Enceladus
This is an example of how modern cosmology/astrophysics pathologically convinces itself of the "reality" of it's own inferences. It' also interesting that the ESA's "model" appears to be a large scale version of the failed cometary "dirty snowball" except for the proposed radioactive core:
Enceladus is a very small body, and it's made almost entirely of ice and rock. The puzzle is how the moon developed a warm core," said Dr Julie Castillo, the lead scientist developing the new model at JPL. "The only way to achieve such high temperatures at Enceladus is through the very rapid decay of some radioactive species."
The hot start model suggests Enceladus began as a mixed-up ball of ice and rock that contained rapidly decaying radioactive isotopes of aluminium and iron. The decomposition of those isotopes - over a period of about 7 million years - would produce enormous amounts of heat. This would result in the consolidation of rocky material at the core surrounded by a shell of ice. According to the theory, the remaining, more slowly decaying radioactivity in the core could continue to warm and melt the moon's interior for billions of years, along with tidal forces from Saturn's gravitational tug.
The team concludes that so far, all the findings and the hot start model indicate that a warm, organic-rich mixture was produced below the surface of Enceladus and might still be present today, making the moon a promising kitchen for the cooking of primordial soup. - The hot start model
Are there any other planetary models in NASA's astronomy/astrophysical grab-bag of scenarios that do not
rely on hot core activity in order to account for dynamics that occur on the surface of planets such as the "jets" of Enceladus? This same characteristic model is also used in relation to the supposed thermonuclear activity of the Sun with neutrinos hypothetically originating from it's core. It's gotten far beyond repetitive.
Is that it then? "Plate tectonics", 'hot molten core generated slipping/sliding', cometary bombardment, volcanism, gravitational "tidal forces" tugging/squeezing, and the occasional bumping of asteroids in the mystical Orrt cloud turning them into comets. Did I leave anything out?
It's good thing I'm not on the allocating committee for any of these missions. Why should I give a few bazillion dollars for a multi-year mission that will simply repeat verbatim the exact same "news"? Is it just me; or does it appear that astrophysical excitement has simply boiled down to a matter of location! You can simply tape record the responses for every question regarding planetary dynamics no matter which planet we visit. I'm afraid we will still hear the same regurgitated mantra when New Horizons reaches Pluto.
"Our laws of force tend to be applied in the Newtonian sense in that for every action there is an equal reaction, and yet, in the real world, where many-body gravitational effects or electrodynamic actions prevail, we do not have every action paired with an equal reaction." — Harold Aspden