Mysteries of the universe

Dark Matter, Dark Energy, Expansion

Dark matter is a relatvely recent discovery. Scientists theorize its existence due to at least four other discoveries:
1. Galaxies apparently spin faster than light
2. The Andromeda Galaxy is moving towards Milky Way
3. Gravitational lensing
4. The universe has much more mass than expected, but when scientists measure the mass of galaxies, including Andromeda, they find that it's greater than it should be.
How is it created? It's unclear how it's created. Scientists theorize that it comes from planets, & what makes the dark matter's creation possible is thought to be due to inequalities in planetary gravity. Interesting once you know about Andromeda, since many other galaxies are moving away from the Milky Way. On the other hand, there's another discovery that is the exact OPPOSITE of dark matter. That is what scientists call dark energy. This dark energy is thought to be the reason for why galaxies are moving away from each other at baffling speeds. Now, let's go back to Andromeda. In this case, dark matter, which is thought to exist in Andromeda, is thought to overpower dark energy.
So, what do I think is really going on?
Well, I theorize that there may be another possibility to Andromeda's approach. Roughly one month ago, there was an article posted on ScienceDaily about Andromeda. Besides dark matter, there is another, literally enormous discovery regarding the galaxy. To be more specific, Andromeda has been observed to have a massive dust cloud surrounding it. The dust cloud has been found to be at least six times as large, and roughly 1000 times as massive as previous measurements. Could this be the key to solving the mystery of dark matter? Dark matter, as well as dark energy, are thought to take up large quantities of space as compared to normal matter. This would make sense, especially with dark energy, since dark energy is what is thought to keep the universe from staying still, let alone collapsing in on itself. Apparently the balance between gravity & dark energy is such that dark energy overpowers gravity. What's fascinating about the expansion of the universe is that although we observers have noticed galaxies moving away from each other quicker near the edge of space, the galaxies in these places are literally being observed many years in the past, during which perhaps the laws of physics may have been different, allowing for matter to exceed the speed of light. Is such a theory even possible? Perhaps not. However, since galaxies are observed so far away & traveling at such speed, could the unimaginable distances & speeds involved somehow cause observations to be flawed? Could something be causing us to perceive things way out there to travel beyond the speed of light? Well, I guess we're not sure. However, here's some food for thought. First of all, I had once pondered what would happen if a spaceship was going at say, 1 mph less than the speed of light, & turned on its headlights. The light would still be going at the same speed and... BINGO! This may perhaps be a key to solving the riddle of expansion. The galaxies aren't going at light speed. Instead, they may be going this fast relative to Earth, if Earth is going in the right direction. This may not seem to explain well enough. However, our Earth is not just orbiting the sun, but also the center of the Milky Way, and this may be the kind of knowledge that is needed in order to answer the riddle. Try to go from here, and see whether you'll end up with a conclusion. The elusive culprit behind expansion