Depends on what you're sending. If you're sending a robot probe to just drive around and what not- even say to meet the requirements of the Google lunar x-prize it'll cost about $100 million.
To send people, that's a different story. NASA's space exploration budget will be increasing from ~$5 billion to ~$10 billion per year over the next 10 years to fund to the return to the moon...
Why traveling the moon is easier the mars
Not as far as we know.
There are a number of advantages and disadvantages of traveling. One big disadvantage of traveling is the cost for example.
What exactly are you asking?
Titan is the only moon known to have a substantial atmosphere.
The cost of Apollo 11 to the moon cost them over 3 billion dollars.
Millions of dollars.
Destination does not affect velocity.
You don't wear clothing on the moon. You wear space suits.
it sometimes cost money
light,, atoms.... molecules in light
Buzz Aldrin and Michael Collins