Posted by jess on Sunday, October 4, 2009 at 7:45pm.
I dont know of any comets or asteroids which have had satellite spacecraft orbit them. Frankly, considering the masses of those, it would be quite a fete.
thank you
Comets have been impacted by spacecraft, and the "tail" of Halley was sampled. At least asteroid have been photographed "up close", and so was Neptune, by Voyager 2. The answer to your question is Pluto.
See http://www.bobthealien.co.uk/spacecraft.htm
for a detailed list of solar system probes
Assuming that a spacecraft lands on an asteroid and bores a hole perpendicular to its surface; it is noticed that the sun shines straight down to the bottom of the hole. Another hole is bored 10 miles "north' of the first hole at the same time, but it is noticed that the Sun makes a 20 degree angle to rod placed into that hole - what is the circumference and radius of that asteriod?
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