February 2013, ROS stewardship transitioned to the Open Source Robotics Foundation.[33] 3/12/2013: 10,000 questions asked on ROS Answers[34] 5/11-12/2013: ROSCon 2013 takes place in Stuttgart, Germany 6/18/2013: Virtual Robotics Challenge takes place, the virtual stage of the DARPA Robotics Challenge August 2013, a blog posting[35] announced that Willow Garage would be absorbed by another company started by its founder, Suitable Technologies. 12/3/2013: ROS.org released[36]