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Where Are We In Space? Astronomers Update Their Celestial Frame Of Reference
How do you know where anything is in space? Sure, you can say, “Oh, that star, it’s the one in the middle of the Big Dipper,” but that isn’t very useful in an era of incredible telescopes peeping at galaxies billions of light-years away. On 1 January 2019, scientists will adopt the newest, internationally standardised…