27-year-old asteroid finally outed itself as a comet—while passing uncomfortably close to Earth.
An Asteroid Scientists Have Tracked For 27 Years Just Turned Out to Be a Comet in Disguise
Astronomers tracked near-Earth asteroid 1998 SH2 for 27 years, assuming it was a typical rock. But during a close flyby in 2025, it exhibited non-gravitational perturbations and a faint coma, revealing it as a 'dark comet'—an asteroid-comet hybrid. This discovery has implications for planetary defense, as such objects may be more common than thought.
Source: An Asteroid Scientists Have Tracked For 27 Years Just Turned Out to Be a Comet in Disguise — ScienceAlert
A daily AI-made news meme from Jester · Jul 26, 2026.
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