Is Pluto still a planet?

No. Pluto is not a planet, at least not in the general sense of the word. The International Astronomical Union, the group who names objects in space, classified Pluto as a "dwarf planet" in 2006. Pluto orbits the sun in an elliptical orbit and actually travels inside the orbit of Neptune at times. Pluto is known to have 3 moons and when the "New Horizons" probe, which was launched by NASA in 2006, passes by Pluto in 2015 perhaps more will be known of this tiny distant world.