It was confirmed last week that Voyager 1 became the first man made spacecraft to enter interstellar space! Does this mean it left our solar system? Ian O'Neill joins DNews to discuss what interstellar space is, and how big our solar system really is! Follow Ian on Twitter: twitter.com/astroengine Read Some of Ian's Recent Articles: news.discovery.com/contributors/ian-oneill.htm Read More: Interstellar Song: Solar Tsunami Hits Voyager 1 news.discovery.com/space/interstellar-song-solar-tsunami-washes-over-voyager-1-140708.htm "NASA's veteran Voyager 1 spacecraft has been hit by a 'tsunami' from the sun as the mission pushes deeper into interstellar space." Voyager encountering interstellar space www.nasa.gov/images/content/709991main_Stone-1pia16486STILL-43_full.jpg Animation of the Heliosphere upload.wikimedia.org/wikipedia/commons/b/bc/Heliopause_%28high-definition%29.ogv Trajectories of Deep Space Probes upload.wikimedia.org/wikipedia/commons/6/6f/A_drawing_showing_the_trajectories_of_Pioneer_10_and_11_as_well_as_Voyager_1_and_2_on_their_varied_routes_out_of_the_Solar_System.jpg Watch More: Saturn's Hexagon Mystery Solved www.youtube.com/watch?v=61mdtQDl9k8 TestTube Wild Card testtube.com/dnews/dnews-437-pets-make-us-healthier?utm_campaign=DNWC&utm_medium=DNews&utm_source=YT Remote Controlled Contraceptives www.youtube.com/watch?v=TBGOna2uWC4 ____________________ DNews is dedicated to satisfying your curiosity and to bringing you mind-bending stories & perspectives you won't find anywhere else! New videos twice daily. Watch More DNews on TestTube testtube.com/dnews Subscribe now! www.youtube.com/subscription_center?add_user=dnewschannel DNews on Twitter twitter.com/dnews Trace Dominguez on Twitter twitter.com/tracedominguez Tara Long on Twitter twitter.com/TaraLongest Laci Green on Twitter twitter.com/gogreen18 DNews on Facebook facebook.com/DiscoveryNews DNews on Google+ gplus.to/dnews Discovery News discoverynews.com Download the TestTube App: testu.be/1ndmmMq