Video narration
What if the Sun vanished right now-would you notice? Not at first. The sunlight warming your face is already traveling here, so the sky would stay bright for about eight minutes and twenty seconds. Then the light would stop arriving. But here's the twist: the Sun's changed gravity wouldn't reach us instantly either. That change travels at light speed, too. During that delay, Earth keeps following its usual path around the Sun. Then Earth would fly onward, roughly in the direction it was already moving, no longer curving around the Sun. The Moon wouldn't leave us: Earth's gravity keeps it bound, and the Moon would still raise tides. Earth would cool, but it wouldn't reach near-absolute-zero temperatures within a year. The delay is real; instant freezing isn't. So when would you notice? After eight minutes and twenty seconds: both the light and Sun's pull stop reaching Earth.