into "space" // "the space"

[Jon]

into "space" // "the space"

Which one is correct?

1. He travels into the space
2. He travels into space

What is the grammar rule here?

Thanks in advance !!

[Lost_Soul]

I'll give it a shot.

In your case you should not use "the"
He travels into space
because you're talking about the universe
I guess you can also say
He travels into the universe

Although, you have to use "the" in some cases, as in "The space required for the machinery is big".

[Yankee]

.
Right, when you use 'space' to talk about the universe, you should not use 'the'.
.