One more time… I promise I’ll bookmark this thread.
I asked this before, but I can’t find the thread. Science fiction story about a mysterious cube found on the Moon. A guy goes to the Moon to check it out. He enters and is killed. Fortunately he’s been stored on disc and everything he experiences is recorded. A ‘clone’ of him is sent up and he makes it a little farther into the cube before he is killed. Repeat until one of him eventually figures out and comes out the other side.