SmartAss FactsQUANTUM SNARK
A light-year is the distance light travels in one year — about 9.46 trillion km, or roughly how far your Wi-Fi signal feels when you move two rooms away from the router.
✓ TRUE FACT
Light travels at about 299,792,458 m/s, so in one year it covers roughly 9.46×10¹² km. That’s a distance unit, not a time unit.