Asteroid turned comet: How NASA and ESO uncovered the mystery of object 1998 SH2
NASA and ESO have uncovered the mystery of object 1998 SH2, which was considered an asteroid for 28 years. It turned out to be a "dark comet" whose faint tail is hidden from the eyes of ordinary telescopes. This discovery changes approaches to planetary defense and the study of near-Earth space 🌌🔭
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