NASA's Voyager spacecraft on the edge of space

An artist's impression depicts the new view of the heliosphere in this image courtesy of NASA's Goddard Space Flight Centre.

Observations from NASA's Voyager spacecraft suggest the edge of our solar system may not be smooth, but filled with a turbulent sea of magnetic bubbles.

While using a new computer model to analyse Voyager data, scientists found the sun's distant magnetic field is made up of bubbles approximately 100 million miles wide. The bubbles are created when magnetic field lines reorganise.
Picture: REUTERS/NASA/Goddard Space Flight Centre