On February 6, SpaceX wrote a new chapter in the ongoing book on commercial spaceflight with the successful launch of its Falcon Heavy rocket. Along for the ride was Musk’s red Tesla Roadster, which is now on an elliptical orbit around the Sun. But what about the risk to Earth? Could the car, which is estimated to last up to a few tens of millions of years, ever pose the threat of raining down from the sky as a fireball in the future?

The answer, as it turns out, is probably not. A