Window of Possibility

"We call our galaxy the Milky Way. There are at least 100 billion stars in it and our sun is one of those. A hundred billion is a big number, and humans are not evolved to appreciate numbers like that, but heres a try: If you had a bucket with a thousand marbles in it, you would need to procure 999,999 more of those buckets to get a billion marbles. Then youd have to repeat the process a hundred times to get as many marbles as there are stars in our galaxy." 

Pulitzer Prize-winning novelist Anthony Doerr shares more in this essay on, why the Hubble Ultra Deep Field is the most incredible photograph ever taken.

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