Floating view ports.
The tubular space within an artery is referred to as the lumen. It is the inner open space where blood flows.
This can be referred to as "remaining space" or "available space."
I believe the cargo space in ships is referred to as the 'HOLD'
Well, there are lots of types of ports depending on how you use the word "ports". There are airports, shipping ports, port wine, port of call, the windows in a ship are called portals, space ports and the female end of a connection, especially when it is embedded in a larger device like a computer or game console is called a port often times.
People who travel into space are typically referred to as astronauts.
Pneumothorax.
In Space was created in 2004.
Invaders from Space was created in 1964.
Space Wars was created in 1977.
An American space traveler can be referred to as an astronaut, as they are individuals trained to travel and work in space.
Matter takes up space. The amount of space matter occupies is referred to as its volume.
The International Space Station is commonly referred to as ISS.