Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Restrained, thoughtful drama about moon exploration

I might be one of the few who still remember it - a little! A remarkably realistic - for its 50's time- and restrained, thoughtful drama about moon exploration/colonization. As an early teen reader when it came out, I considered it a little duller than I usually preferred, but I appreciated the scientific integrity - and Clarke is always interesting. It is NOT what is termed "pulp fiction," by the way.