John D. Barrow Best Life QuotesJohn D. Barrow There are only certain intervals of time when life of any sort is possible in an expanding universe and we can practise astronomy only during that habitable time interval in cosmic history. John D. Barrow BestQuotes4Ever.com There are only certain intervals of time when life of any sort is possible in an expanding universe and we can practise astronomy only during that habitable time interval in cosmic history. |
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