Einstein's Theory Proven: Cosmic Clocks Show Time Moved Five Times Slower in Early Universe

Observations of quasar galaxies during the Cosmic Dawn show time dilation in the early Universe.
Quasars, which are supermassive black holes, were used as a "clock" to measure time in the deep past.
Studying the early days of the universe is like looking back in time, as light from the oldest galaxies is still reaching Earth.
Time in the early universe seems to run five times slower than time today.
Observational data from nearly 200 quasars confirmed Einstein's theory of time dilation in the early universe.