how old is the universe

NASA manages to calculate more accurately the age of the universe

cosmosAn scientific team from NASA, meeting at the Wilkinson Microwave Anisotropy Probe (WMAP) mission, determined with high accuracy and precision the age of the universe, the density of atoms and other non-atomic materials, and the time when the first stars They began to shine.

According to the US space agency, the observations of WMAP are about 68,000 times more accurate in some aspects than previous studies, which allowed a breakthrough in the study of the origin of the cosmos.

The work of WMAP in its nine years of mission was to map the glow of the hot Universe, at a time when it was only 375,000 years old, compared to the more than 13,700 million years it has now. The result was the creation of an image of the ‘Baby Universe’ that has been used to pinpoint what might have happened before, and what happened in the billions of years since the earliest times.

In this way, the probe managed to provide data that support the cosmological theory, based on the ‘Big Bang’, which postulates that the Universe has been expanding and cooling since the big explosion happened. The WMAP observations also support the theory known as ‘inflation’, which says that the Universe suffered a dramatic initial period of expansion, with growth of more than one trillion trillion times in less than one trillion one-trillionth of second. During this expansion small fluctuations were generated that eventually grew into galaxies.

The WMAP measurement also confirmed that the fluctuations follow a bell curve with the same properties across the sky, and there are an equal number of hot and cold spots on the map. In addition, the Cosmos must obey the rules of Euclidean geometry by which the sum of the interior angles of a triangle add up to 180 degrees.

The probe also provided the opportunity to facilitate the time when the first stars began to shine, when the universe was about 400 million years old. This research will go ahead when the next NASA space telescope, James Webb, is put in place, which is specifically designed to study that period.

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