Have finished measuring the Hubble constant

2001/06/12 Roa Zubia, Guillermo - Elhuyar Zientzia

• Astronomia

Astronomer Edwin Hubble (1889-1953) discovered that the universe is expanding and tried to calculate the speed of that expansion. He wrote the formula for that speed. The formula was simple, but it did not define the value of a constant. Many astronomers began calculating the Hubble constant.

The Hubble Telescope has been doing this for 11 years, since its launch is being measured. Before using this powerful tool, the constant value in Hubble was considered to be at a distance of 50-100 kilometers per second and per parsec. However, with the least value of this interval it can be concluded that some elements of the universe are older than the universe itself. Many scientists believe that the older is too large.

Through a measurement based on primed stars, the constant has been calculated at 72 kilometers per second and per parsec. According to experts, it seems a very real value. In any case, they will start working because being real does not mean that it is correct.