Time passed 5 times slower in the early universe.

Quasars are supermassive black holes that are extremely active.

According to NDTV, they conducted the research using observations of a series of quasars.

Research published in the journal Nature Astronomy recently showed time “dilation” through 190 quasars tracked over two decades in multiple wavelength bands.

Quasars are extremely active supermassive black holes, millions to billions of times more massive than our Sun, typically found at the centers of galaxies. They consume matter captured by their powerful gravity and emit jets of radiation, including jets of high-energy particles, while a ring of glowing material orbits around them.

“When we look back to when the universe was just over a billion years old, we see that time seems to pass five times slower. If you were there, in this early universe, a second would seem like a second. But where we are, 12 billion years from now, it would take longer,” said study author Professor Geraint Lewis.

The team used observations of the brightness of 190 quasars in the universe, dating back about 1.5 billion years after the Big Bang that created the universe.

Einstein, in his theory of relativity, demonstrated that time and space are intertwined and that the universe has been expanding outward in all directions since the Big Bang.

By studying distant objects, scientists can look back in time by looking at the time it takes light to travel through space. Scientists previously recorded time dilation that existed about 7 billion years ago, based on observations of supernova explosions.

Professor Lewis asserts that these results clarify Einstein's picture of an expanding universe.

According to Tin Tuc Newspaper