How fast the universe is expanding?
Source:
the universe can expand at a speed that is different from conventional
It Seems that modern physics has reached its existential crisis. Watching how bent the light from distant objects, the researchers came to the conclusion that methods of measuring the rate of expansion was not consistent with real data. According to an article published on the portal , Jeff Chi-fan Chen, a cosmologist at the University of California at Davis, challenged the famous Hubble constant, which was first calculated by American astronomer Edwin Hubble about 100 years ago. It is known that the outstanding scientist of the XX century, put forward the hypothesis that rapid removal from the Earth of every galaxy in the Universe at a speed proportionally equal to the distance of this galaxy from our Solar system. So should we say goodbye with this theory or she still has a place in modern physics?
How is the expansion of the Universe?
The universe — an interesting thing that scientists regularly throws up new opportunities for discussion and debate. This time the universe showed scientists that is constantly expanding, it still maintains a direct dependence between two remote from each other objects. However, the main problem of such a beautiful and universal scientific statements lies in the fact that modern scholars have disagreed about the value of this constant. So, measurements made using the cosmic microwave background (CMB), which represents the remains of the Big Bang, assuming that the Hubble constant is about 74 351 kilometers per hour per million light years.
Considering the pulsating stars, another group of astronomers calculated that the Hubble constant is approximately equal to 81 to 100 kilometers per hour per million light years. This divergence in calculations seems insignificant, however, it is shown that the methodology of calculation crept into some kind of serious mistake.
Edwin Hubble — American scientist of the XX century, in whose honor was named a constant expansion of the Universe
Researchers believe that due to the fact that massive objects warp the fabric of space-time, causing light to bend when passing through the deformed area, all carried out calculations on the speed of expansion of the Universe may be wrong. In order to confirm or refute this statement, the team H0LiCOW using , studied by the light from six quasars are located at a distance from 3 billion to 6.5 billion light years from Earth. In a time when black holes of quasars was absorbed by matter, their light flickered, allowing scientists to investigate the duration of the time delay between the signals.
The result of the experiment team H0LiCOW showed that the value of the Hubble constant corresponds to approximately 81 000 miles per hour per million light years, which is a very close figure to the value obtained by measuring brightness of variable stars.
Anyway, a large number of independently conducted measurements continue to diverge, showing new results. Experts believe that the explanation scientists may need to invent a new physics. What people think about you? Share your opinion with like-minded people in .
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