Have you ever wondered how astronomers measure the distance to other objects in the universe? How do they make claims that this nebula is 1,500 light years distance or that galaxy is 2.5 million light ...
With our universe so vast, it’s hard to think about the distance from one object to the next. The closest celestial thing is our own Moon, but even that is about 238,900 miles away. Not very close, ...
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