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Time appeared to move 5 times more slowly in 1st billion years 5nvklj





Time appeared to move 5 times more slowly in 1st billion years 9tpt39

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    Time appeared to move 5 times more slowly in 1st billion years

    Dragon
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    • Post n°1

    Time appeared to move 5 times more slowly in 1st billion years Empty Time appeared to move 5 times more slowly in 1st billion years

    Post by Dragon Thu Jul 06, 2023 10:46 am

    Time dilation, brought about by the relativistic expansion of space, has resulted in the observed slowing of 'clocks' in the early universe.

    Time has been observed passing more slowly in quasars in the early universe.

    A quasar is powered by an accreting supermassive black hole at the heart of an extremely active galaxy.

    Because the accretion disk around the black hole is relatively small, fluctuations in the light emitted by the quasar can take place in just days.

    This makes them easier to track.

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    Time appeared to move 5 times more slowly in 1st billion years 334pu7m
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    • Post n°2

    Time appeared to move 5 times more slowly in 1st billion years Empty Re: Time appeared to move 5 times more slowly in 1st billion years

    Post by Dragon Thu Jul 06, 2023 10:48 am

    However, in the time since the light, and its fluctuations, was emitted from the 12 billion-year-old quasars, the universe has expanded greatly.

    This means that we are seeing the quasars as they existed over 12 billion years ago.

    The motion of distant galaxies is due to expanding space.

    Consider that the Hubble constant describes how fast a volume of space 3.26 million light-years across is expanding per second.

    This is an incremental effect, where the expanding volumes of space add up.

    The farther a galaxy is from us, the more space has expanded between the galaxy and us, and the faster that galaxy seems to be moving away from us.

    "Some of these quasars were moving faster than the speed of light, relative to us, when the photons were emitted.

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    Dragon
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    • Post n°3

    Time appeared to move 5 times more slowly in 1st billion years Empty Re: Time appeared to move 5 times more slowly in 1st billion years

    Post by Dragon Thu Jul 06, 2023 10:50 am

    Time appeared to move 5 times more slowly in 1st billion years PzxeNB5UmrdU9cjCzyRLEd-1200-80.jpg
    (Image credit: ESO/M. Kornmesser)

    An artist's impression of a distant quasar.

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    Time appeared to move 5 times more slowly in 1st billion years Empty Re: Time appeared to move 5 times more slowly in 1st billion years

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