The all-new outcomes from the Hubble Space Telescope dig out one of the largest obscurities in space science. Astronomers are aware of the expanding universe, and the expansion is happening at a very fast rate. From time to time, you will listen to news stories that claim about the expansion of the universe even faster than we would have imagined. But the new results show something else. The expansion rate is called Hubble constant and it is the subject of a significant difference. The value of Hubble constant varies based on how researchers try to measure it. As per the paper which is set to be published in the Astrophysical Journal, the Hubble Space Telescope’s new results have now upstretched the discrepancy afar a believable level of chance.
The researchers have developed quite a lot of ways to calculate the rate of expansion, as the space between the galaxies and stars grows. One of the methods estimates the expansion based on the uttermost radiation that our experiments can realize and it is known as the cosmic microwave background. Others have made use of the info from supernovae to determine the rate. The above two methods have measured an expansion rate of about 67.7 kilometers per second per megaparsec. This means that the universe is increasing additional 67.7 kilometers per second faster for every 3.26 million light-years.
On the other side, some measurements do not agree with the findings. Researchers have recalculated the Hubble constant by using the Hubble Space Telescope. The researchers, with the use of a fresh high-accuracy measurement of the distance to an adjacent galaxy, called the Large Magellanic Cloud galaxy along with the observations of 70 Cepheid variables. Cepheids’ brightness and pulsation rate are narrow and adequately allied that their distance can be determined. After uniting it with other enhancements, they computed the universe’s expansion rate at 74 kilometers per second per megaparsec.