"2061: Odyssey Three" by Arthur C. Clarke
I realized I had forgotten to write a review of the third installment of the Space Odyssey saga when I was supposed to write one for the fourth book. It might be the age of the book, but even though I didn't find it breathtaking or mysterious, it did entertain me enough to keep reading.
It felt weird that the primordial aliens warned humanity against landing on Europa, then just brushed it aside. In fact, maybe the passivity of aliens was the author's response to the Fermi Paradox: aliens don't care enough, like we don't care if ants build an anthill in the forest nearby where we live.
We have a quick recap of the ending of the last book (Jupiter imploding into a star), then the crash, then the rescue, THERE ARE DIAMONDS, (ah, and some alien life). I found the book, though entertaining, very anti-climactic.