Just pointing this out in case there’s someone as dumb as I am!
Earth is actually about 40,000 kilometers around the circumference (39,000 north/south cos its not a perfect sphere), but I’m pretty sure we’re talking diameter in this challenge so yes! earth’s diameter is around 12,000 kilometers… lol.
Wouldn’t it be lovely to travel right through the middle to get to the other side, would save on fuel costs haha!