Bowman spends months about the ship by itself, little by little approaching Iapetus. All through his solution, he slowly notices a small black spot on the surface of Iapetus, and later finds it similar in shape to TMA-1, only much larger. The researchers in the world identify this monolith "TMA-two", https://needmoneyfasttoday16047.creacionblog.com/36197715/the-smart-trick-of-2001-cash-that-no-one-is-discussing