42

The answer is 42 !! AFTER pondering the weighty question of the mass of the Milky Way galaxy, astronomers have come up with an answer: 42.
That is, our galaxy weighs three times 10 to the power of 42kg – a number written as 3 followed by 42 zeroes, which has echoes of author Douglas Adams’s fictional answer to the question of life, the universe and everything in his series Hitchhiker’s Guide to the Galaxy.

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