Why aren't we sending unmanned probes all over the solar system.

I know that there has been voyager 1 and 2 also pioneer 10 and 11 but why aren't we investigating Venus or mercury or Saturn or Jupiter or Pluto or Charon or Titan or Neptune or even send them to other planetary systems

Because it's a waste of taxpayer money.

Is this a joke? WE ARE! Seriously, you really should research things a bit before asking.

RIGHT NOW: we have several probes examining the Sun from all angles, the MESSENGER orbiting Mercury and sending back tons of data, Venus Express doing the same thing around Venus, the Lunar Reconnaissance Orbiter constantly studying the Moon, all kinds of probes driving across Mars, the Dawn craft having explored asteroid Vesta and now headed to the dwarf planet Ceres, and Cassini-Huygens exploring the Saturn system (after having *landed* a probe on Titan!) Plus a couple of them out chasing down comets.

In the near future we have New Horizons arriving at Pluto in July of 2015, and the Juno probe headed for a long stay orbiting Jupiter, starting in August of 2016.

Really, this is a golden age of solar system exploration, and you should be enjoying it. I know that I am. I gave you a link below to the wiki category listing of all of the active probes that we have out there. Read and enjoy!

You better take long look at all the past, current, and future NASA and ESA missions because the ONLY "planet" that has not been investigated yet is Pluto, and the New Horizons probe will make closest approach to Pluto in 20125. NASA and ESA HAVE been sending probes ALL OVER the solar system, INCUDING CURRENT IN PROGRESS missions like Juno, which is on its way to Jupiter right now, FOR MORE THAN 50 YEARS AND COUNTING.

http://www.nasa.gov/missions/past/index.…

http://www.nasa.gov/missions/current/ind…

http://www.nasa.gov/missions/future/inde…

http://sci.esa.int/science-e/www/area/in…