When You Wish Upon A Star
I have to travel light, often without extra clothes. Fortunately the World Science Fiction Convention has many costumes on display. (Honestly, I am probably too thin to wear this.) Disney says, "If You Wish Upon A Star...Your Dreams Come True." Discovering the secrets of Space/Time is the best Sci Fi dream come true.
Using the Hubble Space Telescope and the Subaru telescope atop our Big Island, astronomers have discovered galaxies that formed barely 500 million years after the Big Bang! Galaxies formed around Black Holes with the mass of a million Suns. These supermassive Black Holes could not have formed by evolution of stars. They are primordial, formed from collapse of quantum fluctuations. Mass of a collapsing Black Hole is limited by the amount of the Universe within its reach. Size of primordial Black Holes is determined by a horizon distance related to the speed of light. The earlier we find these supermassive PBH's, the more evidence favours a changing speed of light.