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Hubble finds evidence for planet around white dwarf

Astronomers found a chemical signature—lots of niobium—in data from the Hubble telescope, suggesting a planet formed around the white dwarf star HS 0209+0832. Unlike Earth, which formed from material left over after the Sun's birth, this "second-generation" planet likely formed from gas and dust ejected as the original star died. The discovery came from reanalyzing old Hubble data with improved chemical databases.

Why it mattersThis is the first time evidence points to a planet forming after its parent star's death, hinting solar systems may have a second life. It changes how we think about the life cycles of planets and stars.

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NASAPrimarySuspected Second-generation Planet Solves NASA Hubble Cold Case3:00 PM →
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