Focus on Arts and Ecology

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China spots biggest atomic cloud in universe

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October 21, 2022 

The largest atomic cloud in the universe has been discovered by China's 'Sky Eye' radio telescope. 

The 'China Sky Eye,' also known as the 500 meter Aperture Spherical Radio Telescope (FAST), is the world's largest radio telescope, located in a natural basin in Guizhou in southwest China. Its great strength is its sensitivity to certain electromagnetic frequencies.

How big is this?

·  It's made up of hydrogen atoms and measures two million light years across and is 20 times larger than our Milky Way galaxy

·  A light year is a measure of distance, not time. It is the distance a beam of light, moving in a straight line, travels in one year

·  To gauge the enormity of this, imagine the Earth's circumference (40,000 km), lay it out in a straight line, multiply its length by 7.5 and then place 31.6 million similar lines end to end. This comes to 9.5 trillion km or one light year. So for the size of this atomic cloud, times this by two million.

(Sources: China Report)

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