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Wednesday, March 21, 2018

Galaxies in the Universe were 10 times larger than previously thought

After analyzing the data obtained with the Hubble space telescope and other space observatories, astrophysicists came to the conclusion that the observable Universe there are trillions of galaxies. Previously it was assumed that they, at least, ten times smaller — from 100 to 200 billion.

photo: pixabay.com

“Observed” refers to the part of the Universe, the radiation from which could reach Earth during the existence of the cosmos. That starry sky reports, not all its wealth, scientists have known since then as “the Hubble” found an incredible amount of dim galaxies are totally invisible to the less sophisticated devices. In the mid 90-ies of the last century, scientists came to the conclusion that the number of galaxies in the observable Universe hundreds of billions, but new data indicate that even these estimates are considered overly cautious.

The researchers compared the data obtained by modern space observatories, and compiled them with the help of special mathematical and three-dimensional models. As a result, scientists came to the conclusion that at the present stage of technology allows us to see only about 10 per cent of the observable Universe of galaxies, while the vast majority of them remain too dim to be discovered by mankind. Scientists suggest that in the future, more advanced telescopes will allow us to confirm their conclusions.

Telescope “Hubble” was launched from Cape Canaveral on 24 April 1990. According to some experts (in particular, NASA astronaut Tom Jones), this event, along with the launch of the International space station, can be considered one of the key events in the history of space exploration over the past few decades. Due to the lack of impact of the atmosphere resolution of the telescope is 7-10 times more than a similar telescope on the Earth.


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