Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: Europe's plans to explore Mars with a satellite in 2016 and a rover in 2018 have taken a big step forward with the signing of new industrial contracts.

Europe's ExoMars missions 'on track'