It's a question that I've pondered.

I suppose the secret is in the ability to finely tune rocket thrust/burn
duration.

I've heard that a moon shot is analogous to a dart player throwing at a
dartboard which is
swinging like a pendulum, whilst the player rotates quickly. I suppose a
shot to Mars
would require the player to do somersaults as well !

People may look upon the Beagle mission as a failure. Considering the
distance
and the accuracy required, I don't. :-)

The apparent lack of communication is a technical hitch. That's all.


"KC" wrote in message
news:fn7Kb.223348$8y1.911937@attbi_s52...
I wonder how did they calculate the travel plan of the Mars Rover? or any
spaceships?

how did they hit the target with such precision after travelling months or
years from millions of miles away? there must be a formula, yes? they
must have a piece of computer program that does the calculation? Is the
source code in public domain? I want to learn how they do it.

thank you
-kc