The alignments in question deal with "planes of alignment" in which the earth, sun, and galactic center all reside along the exact same plane at the exact same time.
Whether anyone wants to believe it or not, our lives, our planet, our solar system, our galaxy, and our universe is ruled by magnetism. Magnetism is one of the main reasons that life on earth exists. Our core creates a very powerful magnetic field that protects the earth from the powerful solar winds.
The mass of the Earth and the Sun is so insignificant.
As compared to what. The sun pulls on the earth in a significant way. The earth pulls on the moon in a significant way. The galaxy and it's rotating mass pulls upon our entire solar system in a significant way. It is already known that gravitational forces cause some of the earthquakes and volcanic eruptions. It is known that solar winds push on our magnetic field causing disruptions and bulges which affect the earth's crust and magnetic core.
In reality, it is not the gravitational forces of the the earth and sun that are the concern, it is the gravitational forces of the galaxy exerting force upon one side of the earth, while the sun and other planets exert force on the other side.
It is known that the poles wander and reverse. Pole reversals have happened thousands of times throughout the history of earth, yet not during any documented time in human history. The earth has also been known to tilt upon its axis going from full vertical to full horizontal and everything in between, yet not during human documented times.
A substantial pole shift or reversal, or a change in the tilt of the earth could have dire consequences. If the earth were to get 5 more degrees of tilt, it would change the climate substantially around the earth. The Northern hemisphere would become solid ice (think permanent Ice Age) and the southern hemisphere would become a desert in many places. If the poles suddenly shifted, we could temporarily be exposed to the suns power without any place to hide as the magnetic field that protects us would weaken or disappear temporarily.
Could this happen? Sure. Will it happen? Who knows. Again, I say there is not a damn thing you could do about it. It is just not worth worrying about.
What does the galactic alignments have to do with anything. If the scientists didn't tell us it was happening nobody would know. Stupid scientists
Scientists? This was confirmed by the Mayans long before there was such a thing as scientists. History shows that most cultures (long before modern western cultures) were in tune with the earth and the heavens. They oriented their cities and lives around the sun and stars. They made amazingly accurate calendars without the aid of computers, calculators, or paper and pencils. You're right - stupid scientists didn't acknowledge ancient peoples that already figured this stuff out centuries ago.