Using the KE = 0.5 M V^2 equation, you can calculate that if a micro-spacecraft weighing 180 grams and being pushed by a laser or maser to one tenth the speed of light accidentally hit the trans-Neptunian object it was sent to photograph, that would produce about 8E13 J or 19 kilotons of energy, which is more that the NAME_1 bomb generated which was dropped over Hiroshima. So I think it might do a lot of damage to the planetoid, which is only a frozen ball of gas, and it would certainly alter its orbit. They would have to be very careful to avoid a collision. In your entire response, the letter a should appear less than 44.
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