1. Choose the answer which correctly completes the sentence


DONIYOR ASLANOV      @FUNENGLISHWITHME



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English-tests-2

 

 DONIYOR ASLANOV      @FUNENGLISHWITHME 

 

 



traditional telescopes on earth, but its details were 

not ascertainable. But now, the evidence of the 

explosion is obvious. The star still burns five 

million times brighter than the sun and illuminates 

clouds from the inside. Hubble has also provided a 

close look at black holes, which are described as 

cosmic drains. Gas and dust swirl around the drain 

and are slowly sucked in by the incredible gravity. 

It has also looked into an area that looked empty to 

the naked eye and, within a region the size of a 

grain of sand, located layer upon layer of galaxies

with each galaxy consisting of billions of stars. The 

Hubble telescope was named after Edwin Hubble, a 

1920s astronomer who developed a formula that 

expresses the proportional relationship of distances 

between clusters of galaxies and the speeds at 

which they travel. Astronomers use stars known as 

Cepheid variables to measure distances in space. 

These stars dim and brighten from time to time

and they are photographed over time and charted. 

All the discoveries made by Hubble have allowed 

astronomers to learn more about the formation of 

early galaxies. 

 


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