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Science history: Edwin Hubble uncovers the vastness of the universe with discovery of 'standard candle' — Oct. 5, 1923

On the night of Oct. 5, 1923, Edwin Hubble observed a strange star that flickered in intensity at regular intervals. The star ...
International Monetary Fund

Questions and Answers on Special Drawing Rights

These Q&As cover recent questions about an SDR allocation. For additional background and basic facts please refer to the SDR factsheet. A direct benefit of a general SDR allocation, and indeed the ...