Venus may still be active based on 'pack ice' finding | CNN
Space Is Dark, But Scientists Have Found Unexplained Light : NPR
Nine probes reached the outer solar system: Where are they now? | New Scientist
Where Are They Now: Checking In on Earth's 25 Active Missions | Visual.ly
File:What's Up in the Solar System, active space probes 2018-01.png - Wikipedia
Record-Breaking Voyager Spacecraft Begin to Power Down - Scientific American
Voyager 1: Facts about Earth's farthest spacecraft | Space
File:What's Up in the Solar System, active space probes 2014-07.png - Wikimedia Commons
File:What's Up in the Solar System, active space probes 2012-06.png - Wikimedia Commons
Voyager 2 - NASA Science
The Voyager spacecraft: 40 years in space, surreal solar system discoveries | CU Boulder Today | University of Colorado Boulder
Our solar system's space traffic revealed in infographic | Daily Mail Online
Space Probes
File:What's Up in the Solar System, active space probes 2016-12.png - Wikipedia
This Glorious Map Helps You Keep Track of Every Space Mission in The Solar System : ScienceAlert
Record-Breaking Voyager Spacecraft Begin to Power Down - Scientific American
![Active Probes Beyond Earth's Orbit [Infographic]](https://imageio.forbes.com/blogs-images/kevinanderton/files/2015/08/SpaceProbes4-868x1940.jpg?height=400&width=711&fit=bounds "Active Probes Beyond Earth's Orbit [Infographic]")
Active Probes Beyond Earth's Orbit [Infographic]
7 active space probes | News | toronto.com
Where is Voyager 1 now? History of Voyager 1 Spacecraft - Orbital Today
Voyager 1 and 2 are turning 46. Here's where they rank among the oldest space probes | Salon.com
List of active Solar System probes - Wikipedia
