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Spun in the sun

Two asteroids have been observed gradually spinning faster and faster, and the hot tip is that sunlight is the cause. If so, this could give us a handle on the dynamics and evolution of the asteroid belt in general.

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Figure 1: YORP in action.


  1. This article and the paper concerned were published online on 7 March 2007.


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Bottke, W. Spun in the sun. Nature 446, 382–383 (2007).

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