Voyager 1, the space probe launched by NASA on September 5, 1977 has been confirmed that it has ventured out of Solar System. Voyager I is the “farthest human-made probe from Earth and the first to enter the vast seas between the stars”, NASA.
NASA confirmed the news after Voyager I encountered the third coronal mass ejection(The shockwaves erupting from Sun). The below shown video is of plasma ringing recorded by Voyager I.
To give you better understanding, solar system is being protected by a protective sheath from outer plasma. The image below will explain the protective shield around our solar system.
Lets hope that Voyager I would give us important information about outer space which would enhance our knowledge about the interstellar space. Fact: Voyager I contains a message from President Jimmy Carter, if it encounters any living life form in outer space.