In the past few decades an uncountable fleet of satellites and and space probes have left Earth to visit every destination in the solar system. Here's what they found. Subscribe to Spark for more amazing science, tech & engineering videos: https://goo.gl/LIrlur 🚀 Join the Spark Channel Membership to get access to perks: null Find us on: Facebook: https://www.facebook.com/SparkDocs/ Instagram: https://www.instagram.com/spark_channel/ Any queries, please contact us at: owned-enquiries@littledotstudios.com #Spark