How fast does ISS move?

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ISS circles the Earth at a speed of some 8 kilometers per second. In the sky, it appears to move about as fast as an aeroplane. A single ISS pass usually lasts a few minutes.

4 comments

#4
icarus745 - 25 November, 2010 - 09:50:

It orbits every 90 minutes while the Earth spins under it. It shd be over most places twice a day & the poles every 90 minutes.

#3
__steve__ - 30 September, 2009 - 14:00:

It must go round the earth a few times in a day at that speed...
I would expect to see it flashing by all the time!

#2
tjaap - 10 August, 2009 - 13:46:

It is! Well sometimes a bit more or a bit less, like 7,7 or 7,8 k/h. That speed is needed to keep it circling the earth.

#1
Redror - 9 August, 2009 - 07:57:

G'day 8 Kilometers per second = 28800 kilometers per hour! is that its actual speed?

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