For more than a quarter century, unidentified chemical signatures from a white dwarf star have laid dormant in the archive of the NASA/ESA Hubble Space Telescope, until diligent sleuthing by a young astronomer revealed something extraordinary: high amounts of the element niobium, and other unusual chemical abundances, indicating a potential second-generation planet orbiting the white dwarf. While a handful of planets have been identified orbiting white dwarfs, this is the first candidate with the hallmarks…
Source: ESA/Hubble · Original release
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