space is a vacuum, their is no air to slow things down so small forces which are applied over short periods of time can make an object go very fast. like the voyager which passed by planets had had got a boost from planet's gravitational forces. in fact it is said that they travel faster then bullets.
1000000000000000000000000000000000000000000 fast
17,500 mph.
plasma
Approximately 18,000 mph.
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No. The unmanned space probe New Horizons flew by Pluto in 2015 but was moving too fast to enter into orbit.
No. Currently an unmanned space probe is on its way to Pluto and will arrive in July 2015, but it is moving too fast to land. No human has ever gone farther than the moon.
It depends on where in space they are but they often travel extremely fast, upwards of 11 km per second
Fast enough to cause a big spolosion
1000000000000000000000000000000000000000000 fast
yes
17,500 mph.
plasma
Approximately 18,000 mph.
Theoretical, infinate, if you travel through warp space.
The best fictional way to travel through space fast without messing with time is teleportation.
They travel through space at the same speed that Saturn travels.