Thread: Speed in space
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Old September 18 2012, 10:22 PM   #7
MadaBidyoni's Avatar
Re: Speed in space

ok so not near to light speed & not 90%.
& lets say we will find a way to do it without a fuel tank & get the energy from outside in some way...
will we get to... say... 70%?

B. lets make it simpler. why a comet can't get to 70%? it just accelerating & accelerating (no friction)...

The fastest speed a human-built spacecraft has ever achieved is about 70 kilometers per second, which is a measly fortieth of a percent of lightspeed. And that was a probe launched inward toward the Sun, so it got added acceleration from the Sun's gravity.
oh... wasn't voyager the fastest?
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