The kilometer is a longer unit of length. Is that right?

Km is a larger unit of length

We all know that the largest unit of length is light years. So, what is the largest unit of weight?

But all scientific journals use kg to weigh. For example, the weight of the earth is about 5.976 × 10 ^ 24kg

How many kilometers is 270 million light years equal to

The 21st power of 2.554416 * 10

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