Seoul, Jun 21 (IANS): Multi-billionaire tech mogul Elon Musk on Sunday took to the Twitter to describe his relationship with Mars by calling the red planet his soul dog.

"Mars is my soul dog," Musk said in a tweet.

Responding to Musk, a user tweeted, "Elon is from Mars. The Galactic Federation has no say. They agree with his awakening tactics."

"Why Mars? There's plenty of planets out there," mentioned another user.

Another user posted to him, "YOU are my soul dog I don't even care how many other people have said this already."

Meanwhile, Musk is building floating spaceports at least 35 km from the coastline and would be used for launching starship rockets to the Moon, Mars and even hypersonic travel around Earth.

The floating spaceports would be accessed via tunnels dug under the water and Musk-owned The Boring Company would construct those.

Musk had earlier tweeted that most Starship spaceports will probably need to be around 35 km offshore for "acceptable noise levels".

SpaceX is currently hiring "offshore operations engineers" to help develop floating spaceports for Starship.