A way of estimating more accurate distances to the thousands of “planetary nebulae” has just been announced by 3 astronomers at Uni of Hong Kong (HKU): Dr David Frew, Professor Quentin Parker and Dr Ivan Bojicic, based on 10 yrs of research work. With this technique, “planetary nebulae” finally get a more meaningful physical presence.
Ghostly and beautiful planetary nebulae” have nothing to do with planets but acquired this nam...
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