Quasar ‘clocks’ show Universe was five times slower soon after the Big Bang
www.eurekalert.org
Quasars are the supermassive black holes at the centres of early galaxies. Scientists have unlocked their secrets to use them as ‘clocks’ to measure time near the beginning of the universe.

In the early universe time ran much slower compared to the current period. This was already known, but scientists have pushed this back to a billion years after the big bang, when time ran 5x slower compared to now.

  • Cegorach@feddit.deEnglish
    0·
    1 year ago

    to me that just makes no sense - I mean there’s probably some kind of math-evaluation that said so, but… uh…

    slower compared to what? It’s not like you can take a stopwatch and look how long a second feels.

    Time “now” isn’t fixed either - move closer to a black hole or just move faster and your time becomes slower - COMPARED TO THE REMAINING UNIVERSE.

    But you’ll only notice when you return and compare clocks. Back then, when everything was faster, there wasn’t something to compare to? So nothing was faster?