It's by Cixin Liu and there is also "The Dark Forrest" and "Death's End" in the triology. They have some very interesting ideas - kind of: with the size of the universe there's bound to be other life. But are we sure we want to be found?
My book on Wattpad is Shifting Flames. It’s about Mancers that control the elements. But there’s a Black Mancer girl that’s all mysterious (but it’s an anti-cliche book)
This is the link for my story. :)