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Updated 11:29 AM EDT, Tue, Jun 16, 2020

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New Dark Disc Theory Could Explain Why Humans Exist

This composite image shows the distribution of dark matter, galaxies, and hot gas in the core of the merging galaxy cluster Abell 520, formed from a violent collision of massive galaxy clusters.

(Photo : NASA, ESA, CFHT, CXO, M.J. Jee (University of California, Davis), and A. Mahdavi (San Francisco State University)) This composite image shows the distribution of dark matter, galaxies, and hot gas in the core of the merging galaxy cluster Abell 520, formed from a violent collision of massive galaxy clusters.

A leading physicist from Harvard University may have just discovered why humans exist in the universe by proposing this new theory that will hopefully explain where human come from.

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According to Lisa Randall who is also known for her work about cosmology including theoretical particle physics, claims that the mass extinction event that wiped out the dinosaurs which is also the reason humans emerged and evolved, is apparently linked with dark matter.

In her new book called  "Dark Matter and the Dinosaurs: The Astounding Interconnectedness of the Universe", Randall explains how a theoretical dark disk during the eary formation of the Milky Way galaxy is filled with compact dark matter, filling the entire galaxy at the time, which paved the way to human existence. 

Since dark matter is responsible for creating the structure of the universe along with the formation of galaxies, dark matter is still invisible where scientists believe that it makes up 85 percent of the entire universe.

Randall says that dark matter is pivotal since it serves an important role when it comes to holding everything together.

The massive dinosaur die-off happened when a cosmic object with a diameter of nine miles crashed into the planet more than 66 million years ago. This impact was so massive that it killed off 75 percent of living species on Earth, especially the dinosaurs. Those species that survived were smaller primates and when they grew, developed and adapted to their new environment, they evolved and began walking erectly, on two legs.

However, Randall says that this mass extinction event that was crucial to the emergence of the human species was apparently not by coincidence or chance.

This new theory involves a small part of dark matter that also interacts with the visible matter around it in various ways, not just by manifesting through gravitational forces. Now, this hypothetical dark disk lies in the middle plane of the Milky Way galaxy, where its gravitational pull also affects the motion of the stars. More specifically, these forces can disrupt comets in the Oort cloud, which is located in the outer solar system.

In this big plane, in the middle of the galaxy, there is a cosmic material that is encircling above it and sometimes below. This mysterious material has been travelling from the big plane in order to reach the top and the bottom of the plane. This happens every 30 to 35 million years when this mysterious cosmic material passes through the big plane, where gravitational forces in the galaxy become more intense.

In turn, these extra powerful gravitational forces can cause asteroids and comets to go haywire as they crash into Earth as Randall presents fossil and geologic evidence to support this new theory. She adds, if this is indeed proven, then this would mean that dark matter is responsible for changing the world forever, playing a crucial role in the emergence of human existence.

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