Washington — The latest data sent from Voyager 2 brought new insight and questions about the boundary region where the sun's influence ends and interstellar space begins.<br /><br />According to NASA, the sun's energetic influence projects a bubble around the solar system called the heliosphere, Reuters says.<br /><br />NASA reports that as Voyager 2 crossed the border region, or the heliopause, it registered an unexpectedly sharp difference in magnetic particles and plasma density.<br /><br />Comparing the data from Voyager 1, researchers found the heliopause is thinner and less changeable by solar cycles than thought previously, the New York Times reports.<br /><br />The New York Times reports that the sun creates the heliosphere bubble by blowing solar wind, or charged particles that are mostly hydrogen.<br /><br />University of Iowa Professor Don Gurnett told the New York Times that solar winds clash with interstellar winds in the bubble's outer region, which could explain why a sharp boundary was formed.
