Moonseed by Stephen Baxter -Moonseed is an exploration of what could possibly happen when rock returned from the Apollo 18 mission (which was actually cancelled in 1970). In the book, the rock contain a mysterious substance called "moonseed" (a form of grey goo, whether nanobots, an alien virus or something else) that starts to change all inorganic matter on Earth into more moonseed. It also gets transferred by a NASA probe to Venus, and the explosion of Venus is the first clue ....
Broken Harbor (Dublin Murder Squad Series #4) -- Tana French's books are my soul. I love them and I'm finishing this one up and, goodness, I don't want it to end.
another favorite. such an inspiration.