I've read The Invincible and then Solaris. I super enjoyed The Invincible while the Solaris was more solid enjoyment. I preferred that the Invincible had both ship-time, planet-time and unknowable alien time while Solaris seemed so much more distant/removed to the planet and it's alien life.
Which of Lem's works are more in the theme of The Invincible?
by AlgorithmHater