So, I just got done re-reading probably my 3rd favorite book ever, Sphere, by Michael Chrichton.
Basically, it's about this psychologist, Norman, who's 53. He get's flown in to this random place in the Pacific Ocean, North of Australia, and finds out that he's about to be put on a mission. To find aliens.
This is based on a paper that the government had commisioned him to write 6 years earlier, on what to do if we ever contacted aliens. He thought it was a joke.
But, he finds out that beneath the ship they've flown him to, 1000 feet down, there is a gigantic spaceship, 1/2 a mile long, many feet wide, in a cylinder shape. They think aliens are there.
So, Norman, along with a team he had proposed in his alien paper, descend down, to an underwater habitat, 33 atmospheres of pressure.
They live there for a few days, looking at the spacecraft, and they go in.
They find out it's American, from 2048, and had time traveled backwards.
Weird. They're discovering a ship that won't be built for 50 years (when the book was written).
Anyway, they find out that the ship's mission was to travel through space and time, and find aliens.
The crew of the ship is long dead, but, they find out that either before or after they died, they ship picked up something.
A gigantic sphere.
10 yards diameter.
Perfect, flawless, polished, pristine in every way.
Except for some weird markings on one side.
A quote: "On the far side, they discovered a series of deep, convoluted grooves, cut in an intricate pattern into the surface of the sphere. The pattern was arresting, though Norman could not immediately say why. The pattern wasn't geometric. And it wasn't amorphous or organic, either. It was hard to say what it was. Norman had never seen anything like it, and as he continued to look at it he felt increasingly certain this was a pattern never found on Earth. Never created by any man. Never conceived by a human imagination.
He felt sure of it.
This sphere was something alien."
The find that the pattern is a door, of some sort. The sphere is hollow.
They spend like the rest of the book trying to figure out how to open it, and when they do, it nearly kills all of them.
But, I almost would have preferred it stay closed. A perfect mystery. A giant, perfect sphere. Alien, possibly floating in space for thousands of years. Made of unknown, indestructible material. And there is something inside. It's a GREAT mystery, one that I just LOVE to ponder...
That one seems better unsolved, because once you figure out how it got to be in space, how old it is, who or what it was made by, what's inside, and everything else, then it's boring.
It's just another part of life.
I like to savor the mystery.