General, Research, Technology

How fast is the universe expanding?

It seems that modern physics has reached itsexistential crisis. Observing how the light from distant objects bends, the researchers came to the conclusion that the methods for measuring the expansion rate of the Universe are not consistent with real data. According to an article published on livescience.com, Jeff Chi-fun Chen, a cosmologist at the University of California, Davis, questioned the famous Hubble constant, which was first calculated by the American astronomer Edwin Hubble about 100 years ago. It is known that an outstanding scientist of the 20th century put forward a hypothesis about the rapid removal of each galaxy in the Universe from the Earth at a speed proportional to the distance of this galaxy from our solar system. So should we say goodbye to this theory, or does it still have a place in modern physics?

The universe can expand at a speed different from the generally accepted

How is the expansion of the universe?

The universe is an interesting thing that regularlygives scientists new opportunities for discussion and debate. This time, the universe showed scientists that constantly expanding, it still maintains a direct relationship between two objects distant from each other. However, the main problem of such a beautiful and universal scientific statement is that modern researchers disagreed on the very value of this constant. So, measurements made using the cosmic microwave background (CMB), which is the remnants of the Big Bang, suggest that the Hubble constant is about 74,351 kilometers per hour per million light-years.

Looking at pulsating stars, another groupastronomers have calculated that the Hubble constant is approximately 81,100 kilometers per hour per million light-years. Such a discrepancy in the calculations seems insignificant, but it is he who shows that some serious error crept into the calculation methodology.

See also: Can a multiverse be part of a deeper reality

Edwin Hubble - an American scientist of the XX century, in whose honor the constant of expansion of the Universe was named

Researchers believe that due to the fact thatmassive objects deform the canvas of space-time, causing the light to bend as it passes through the deformed areas, all calculations performed with respect to the expansion speed of the Universe can be erroneous. In order to confirm or refute this statement, the H0LiCOW team, using the Hubble Space Telescope, studied light coming from six quasars located at a distance of 3 billion to 6.5 billion light years from Earth. At the moment when the black holes of the quasars absorbed matter, their light flickered, allowing scientists to investigate the length of the time delay between signals.

The result of the experiment of the H0LiCOW team showedthat the value of the Hubble constant corresponds to approximately 81,000 kilometers per hour per million light-years, which is a very close indicator to the value obtained by measuring the brightness of variable stars.

Be that as it may, a large number of whateverThe measurements continued to diverge, showing new results. Experts believe that to explain what is happening, scientists may need to come up with new physics. What do you think about this? Share your opinion with like-minded people in our Telegram chat.