"This Planet is Condemned"
When Superboy investigates Willy Mason's allegations about his parents being aliens, he finds himself transported 1500 light years from Earth to a distant planet. There, he learns that the planet's population is dying from radiation that the ground is emitting.
"The Computers That Saved Metropolis!"
Reprinted from the July 1980 Radio Shack free comic "The Computers That Saved Metropolis!"