The only thing I can think of is kind of website about early universe...which is not exactly "early space"..
I feel it is not really that semantically valuable, as many people would need to strech their imagination to fit a purpose to the name.
Well, now I visited the webpage and it seems you have idea about early space programs...which is also possible and nice use of the name.
So the name is imo average quality gTLD combo and can fetch low xxx - 1k to ideal end user in 2018, while the probability of resale for this price is very tiny imo at each given year of holding.