Japan's Hayabusa2 Is Racing Towards Asteroid 1998 KY26. Observations Show This Object Is Accelerating, But Nobody Knows Why
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Japan's Hayabusa2 Is Racing Towards Asteroid 1998 KY26. Observations Show This Object Is Accelerating, But Nobody Knows Why

The asteroid appears to be accelerating non-gravitationally, and a reasonable explanation has just been ruled out.