Ariane 6 Fires its Engines, Simulating a Flight to Space https://www.universetoday.com/164450/ariane-6-fires-its-engines-simulating-a-flight-to-space/ #marssamplereturnmission #cosmicvision2015-2025 #cometinterceptor #arianespace #featured #ariane6 #athena #ariel #plato #moon #esa