what is the speed of lightyear?
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Light is the fastest-moving stuff in the universe. It travels at an incredible 186,000 miles (300,000 km) per second. That's very fast. If you could travel at the speed of light, you would be able to circle the Earth's equator about 7.5 times in just one second!
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Hi there!!
The speed of light year is 1.08×10^9 km/h..
The speed of light year is 1.08×10^9 km/h..
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