First its rotation slowed between March and May 2017, taking 46 hours to complete a spin where it had once taken only 20 hours. This occurred as the comet neared its closest point to the sun, roughly ...
The Chosun Ilbo on MSN
Comet 41P halts spin, reverses rotation in first observed reversal
A comet wandering through space was observed to abruptly slow its rotation, stop completely, and then begin spinning in the opposite direction—a phenomenon first confirmed in observational data. David ...
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