Scientists have made a fascinating discovery about the nature of time in the early universe. By studying quasars, which are black holes known for their ferocity, researchers have observed that time seemed to move five times slower when the universe was approximately 1 billion years old. This revelation confirms the predictions of Theory of relativity in albert einstein.
The study, published in the journal Nature Astronomy, examined 190 quasars over two decades in various wavebands. The findings showed that, compared to the present, things appeared to be in slow motion during this remote period of the universe. This cosmic slowdown of time has been identified and supported by research, validating Einstein's theory.
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The time and age of the universe
Prior to this study, scientists had already used bright supernovae as "cosmic clocks" to demonstrate that time ran slower when the universe was half its current age.
However, this new research indicates that just over a billion years after thebig Bang, time actually flowed five times slower.
(Image: Estadão/reproduction)
Astrophysicist Geraint Lewis, from the University of Sydney and lead author of the study, emphasizes that, although things seem to have diminished in distant places, the experience of time in these places is not really different.
If someone could magically be transported back 10 billion years and placed next to one of these quasars, time would still progress normally. A second would still be a second, regardless of observed differences on the cosmic scale.
Quasars are supermassive black holes located at the center of distant galaxies and are considered the brightest and most powerful objects in the universe. Due to this unique characteristic, they are extremely valuable for mapping the universe and understanding its evolution over time.
Confirmation of this slowdown of time in the early universe reinforces the accuracy of Einstein's theories once again. Albert Einstein was a German theoretical physicist known for developing the theory of general relativity, which is one of the pillars of modern physics, along with quantum mechanics.
His revolutionary theory replaced Newton's independent concepts of space and time with the idea of spacetime as a unified geometric entity.
Special Relativity, published by Einstein in 1905, introduced the idea of space-time and the invariant speed of light. Ten years later, he expanded his theory and published General Relativity, which integrates the effects of gravitation, introducing the notion of curved spacetime.
Einstein's contribution to theoretical physics was recognized with the 1921 Nobel Prize in Physics, mainly for his discovery of the law of the photoelectric effect, which was instrumental in establishing the theory quantum.
Thus, this discovery allows us to better understand the functioning of the universe in its stages initials and reinforces the importance of the physicist's theory for understanding the nature of time and space.
The study of quasars and their relationship with the dilation of the timeprovide valuable insights into cosmic evolution and phenomena that occurred billions of years ago.
As we continue to explore the secrets of the universe, it's exciting to see how science can confirm and extend established theories like Einstein's.
These discoveries bring us ever closer to a deeper understanding of the cosmos and may even lead to exciting revelations about time and space in our vast and mysterious universe.
