![]() ![]() ![]() The fastest mad-made object ever built, the Helios 2 spacecraft, reached a maximum speed of 157078 mi/h (252792 km/h). So 10 light years is around 58.79 trillion miles (94.61 trillion km).Īpollo 10 set the record for the highest speed attained by a manned vehicle at 24791 mi/h (39897 km/h). This is approximately 5.879 trillion miles (9.461 trillion km). A light year is the distance light can travel in one year in a vacuum.
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