NASA plans to visit the sun in 2015.
Sometime in 2015, NASA plans on sending a solar probe to study the atmosphere and magnetic fields of our sun. It will be the first time in history that anyone has explored a star.

The name of the mission is Solar Probe+. It’s a heat-resistant spacecraft designed to plunge deep into the sun’s atmosphere where it can sample solar wind and magnetism first hand.
At closest approach, Solar Probe+ will be 7 million km or 9 solar radii from the sun. There, the spacecraft’s carbon-composite heat shield must withstand temperatures greater than 1400o C and survive blasts of radiation at levels not experienced by any previous spacecraft.
Source: NASA