SUMMARY: Think planets can only form around stars? Well, think again. NASA's Spitzer Space Telescope has uncovered evidence for a potential planet-forming disk around a pulsar. In a former life, the pulsar would have been a large star 10-20 times bigger than the Sun that eventually consumed its fuel and exploded as a supernova. The remaining debris has started to collect again, and could eventually turn into new planets. This helps explain how planets were discovered around another pulsar in 1992, including one that's Earth-sized.
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