When voyager 2 could fly by Uranus, neptune, pluto didn NASA discover life on those planets?
No, NASA has not discovered life on these planets. In fact, NASA is not even in the business of discovering life. That is the job of the scientists who use NASA facilities to launch probes like Voyager. These are independent scientists who work for universities, not for NASA. NASA just launches the probes. Voyager is a probe, not designed to land on planets or take off from them again. It passed by these planets and proceeded out of the solar system into interstellar space, which is where it is now. Its path and current position are well known to scientists — there are no mysteries or conspiracies here.
