Each year we go a little further and understand a little bit more about the final frontier — and 2018 was no exception. We said goodbye to a few of our favourite space missions, celebrated an anniversary, and got one step closer to Mars. Before we ring in the New Year, here’s a quick look back at 2018’s most significant achievements in space exploration.Nasa reached a significant milestone this year turning 60 years old. Space exploration has been going strong in 2018. Each year we go a little further and understand a little bit more about the final frontier — and 2018 was no exception. In 2018, it launched the Parker solar probe and the Nasa's insight lander made it to Mars. Here are the best photos of 2018.Touching the Sun 1 / 10<div