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by mcdevilkiller 2508 days ago
Are you sure it's km/s? :D
2 comments
tromp 2508 days ago
As https://en.wikipedia.org/wiki/Speed_of_light puts it:

"Its exact value is 299,792,458 metres per second (approximately 300,000 km/s"

link
phaemon 2508 days ago
Yes, it is.
link