neptune is a fun and enjoying planet! You can ice skate on the cold side or take a nice tan i know you will enjoy it
No
Have human or human made objects travel to neptune
Not in the foreseeable future.
We cannot travel that far yet.
Use a teleporter and BAM you're there
5,000,000,000,000,000,000,000,000,000,000,000 million miles an hour
Your mass will not but your weight will.
It is the spacecraft voyager 2 , it is the only spacecraft to visit Neptune, and travel further.
A little over 11 years i think :]
2,400 km per hour
Neptune
12 hours