This article is from the SF references in music List FAQ, by Rich Kulawiec firstname.lastname@example.org with numerous contributions by others.
There's a song on the album "You and Me Both" about childhood
during a nuclear war.
Yellow Magic Orchestra:
"Citizens of Science" from "X Infinite Multiples".
Much sf-oriented work. Try "Astral Traveller" and "Starship Trooper"
(Heinlein? maybe). See also Jon Anderson's "Olias of Sunhillow" and
Anderson & Vangelis's song "Mayflower" from "The Friends of Mr.
Cairo". See also "Then" with references to telepathy. Also, "Arriving
UFO" from "Tormato", "Machine Messiah" from Drama
(computer/controller), most of the entire album "Close to the Edge"
(which your editor regards as unquestionably the most complex and
finest piece of music ever written and performed by a rock band),
"South Side of the Sky" from "Fragile", and "Awaken" from "Going for
the One". "Shoot High Aim Low" from "Big Generator" might be about a
futuristic war. The problem with figuring out much of Yes's work is
that the abstract poetic style often obscures the meaning and multiple
interpretations are possible. See also Rick Wakeman, Jon Anderson, &
Anderson, Wakeford, Bruford and Howe.
LP "Last Stage for Silverworld"
"After the Gold Rush", and "Ride my Llama" from "Rust Never Sleeps".
("After the Gold Rush" ends with a line about a mothership arriving
and "...taking Mother Nature's silver seed to a new home in the sun".)
On the album "Trans", see "Computer Age", "We R In Control", and "Sample