Harvard physicist Lisa Randall proposes a new radical theory of human existence.
Where do humans come from? This is probably the most debatable and puzzling question. Some might say we are made up of the remnants of stars while some others might argue that humans were evolved from apes.
How To: Buy a Pokemon Go Plus
But Harvard University physicist Lisa Randall has proposed a new radical theory for human existence. In her latest book ‘Dark Matter and the Dinosaurs’, Randall explains that dark matter, an invisible, unreflective matter which makes up almost the 80 percent mass of the universe, is responsible for the emergence of humans.
Scientists agree that around 66 million years ago, a giant celestial body or comet smashed into the Earth and wiped out almost 75% of the species living across the planet including most of the dinosaurs. Only some primates survived the catastrophe which gradually evolved into larger species.
The hypothesis put forward by Randall is something difficult to prove because science still knows very little about the dark matter disc within the galaxy Milky Way. The mysterious matter cannot be seen with telescopes but it has a strong gravitational influence on the objects around it, including our solar system.
But what caused the giant space object to collide with the Earth and when did the disc affected our solar system because it does not always remain close to it.
Scientists estimate that our solar system passes through the plane of the Milky Way once every 32 million years and gets close to the dark matter disc.
Interestingly, evidence also suggests that mass extinctions also occurred more or less within the same time frame, after every 25 to 35 million years. Mass extinctions are those periods in Earth’s history when a large number of species die out simultaneously.
Randall hypothesizes that when the solar system goes past the disc, the gravity from the dark matter influences its outer region and creates mass extinctions. That was exactly what happened to the dinosaurs 66 million years ago.
But probably science requires more evidences to support Randall’s theory.