At 99.999999999999999999999999% of the speed of light, just like everything else that has mass.
But also take in account acceleration, safely the fastest speed to accelerate is a constant 2g acceleration without killing your astronaunts.
1000000000000000000000000000000000000000000 fast
17,500 mph.
plasma
Approximately 18,000 mph.
It a spacecraft
It depends on where in space they are but they often travel extremely fast, upwards of 11 km per second
That special gear that has been developed for human space travel was the space suits. The space suits kept human alive in the harsh environment of space, temperature extremes and vacuum.
Fast enough to cause a big spolosion
1000000000000000000000000000000000000000000 fast
Approximately 18,000 mph.
yes
17,500 mph.
plasma
To see if it was safe for a human to travel into safe. If the monkey made it, a human might survive space travel. If the ape died, then it was not safe for a human to go into space. The chimp lived, so human beings were sent into outer space.
Theoretical, infinate, if you travel through warp space.
The best fictional way to travel through space fast without messing with time is teleportation.
Russia.