Science & Exploration Rosetta's journey 30879 views 80 likes ESA / Science & Exploration / Space Science / Rosetta An animation of Rosetta's 12-year journey, which began in February 2004, with an Ariane 5 launch from Kourou in French Guiana. It performs three fly-bys of Earth and one fly-by of Mars, reaching the comet in 2014. Download the latest Macromedia Flash® player. Like Thank you for liking You have already liked this page, you can only like it once!