A thought experiment shows that if the Sun disappeared instantly, Earth would lose direct sunlight after about 8 minutes 19 seconds, while a hypothetical sound‑speed signal would need roughly 13.8 years to arrive.
A thought experiment shows that if the Sun disappeared instantly, Earth would lose direct sunlight after about 8 minutes 19 seconds, while a hypothetical sound‑speed signal would need roughly 13.8 years to arrive.