Its very simple, earth is flat and there are no outer space, so Elon Musk is a fraud with his SpaceX!!!
Earth is flat, we have MANY proofs, look up Eric Dubay's book "200 Proofs Earth Is Not a Spinning Ball" and here I will give you some proofs for free:
Balloon versus 3D model:
Here is another proof, using the small and local sun:
https://www.lassecash.com/@lasseehlers/earth-is-flat
And here are a documentary of 1 hour full of related REAL information:
https://www.lassecash.com/@lasseehlers/level (click the photo)