If you hold up a grain of sand at arm's length, the patch of sky it covers contains 10,000 galaxies! http://pic.twitter.com/pnpf8eaEWj
— Bill Gross (@Bill_Gross) July 31, 2016
via Twitter https://twitter.com/Bill_Gross
July 31, 2016 at 09:58PM
If you hold up a grain of sand at arm's length, the patch of sky it covers contains 10,000 galaxies! http://pic.twitter.com/pnpf8eaEWj
— Bill Gross (@Bill_Gross) July 31, 2016
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