HUBBLE (@HUBBLE_space)
@HUBBLE_space
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🆕 This suspected second-generation planet has solved a Hubble cold case 🕵️♂️
Since 1999, mysterious chemical signatures from a white dwarf, HS 0209+0832, have sat in the Hubble archive. Now, sleuthing astronomers have revealed unusual chemical abundances, including of the element niobium. 1/3
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