“The interesting thing is: we have no idea!” says Pieter van Dokkum, Sol Goldman Professor of Astronomy at Yale University, who wrote in an email to The Daily Galaxy about why ultra-diffuse galaxy DF2 contains no dark matter. “The existence of this galaxy shows that there is another pathway to creating galaxies than our standard picture, but what that might be is anyone’s guess.”
This week’s newsletter covers news reports from “Why aren’t we talking more about UFOs?” asks Megan McArdle in the Washington Post to the first matter in the universe may have been a perfect liquid to the Milky Way’s supermassive black hole, Sagittarius A*, may actually be a colossal glob of dark matter.
The first “theory” of the dark cosmos was embodied in the Greek god of darkness, Erebus, one of the primordial deities born out of Chaos, the primeval void, foreshadowing the contemporary, emerging reality of the dark side of our universe. Enter Nobel-Prize Laurate, physicist Sir Roger Penrose, and his Erebon field theory, a novel explanation of dark matter that suggests that the Big Bang was not the origin of our universe. Despite ongoing searches, no signs of a dark matter particle have turned up.
“There’s something we just don’t understand about the internal structure of how the universe works,” said Enectali Figueroa-Feliciano, an associate professor of physics at Northwestern and the MIT Kavli Institute for Astrophysics and Space Research, reacting to what astronomers think may be the first real signal from the “dark universe.”
“You’ve heard of electric cars and e-books, but now we are talking about electric dark matter,” said Julian Munoz of Harvard University. “However, this electric charge is on the very smallest of scales.”