European Space Agency director Josef Aschbacher promised a "transformation" of the continent's space sector in the coming years during an interview with AFP, including more collaboration between government and private industry.

Private firms will be "encouraged to be a partner and not only a contractor," Aschbacher said, answering questions on the sidelines of an aerospace industry conference taking place this week in Colorado Springs, in the United States.

US space agency NASA has long incorporated private firms into its space exploration, planning to send its astronauts to commercial orbiting outposts once the International Space Station is retired.

But any major reorientation of the European space program will need to be discussed at the second European space summit, to be held in Seville, Spain, in November.

Here are Aschbacher's answers to questions posed Tuesday by AFP.

Lunar exploration is undergoing a renaissance. Dozens of missions, organized by multiple space agencies—and increasingly by commercial companies—are set to visit the moon by the end of this decade. Most of these will involve small robotic spacecraft, but NASA's ambitious Artemis program, aims to return humans to the lunar surface by the middle of the decade.

There are various reasons for all this activity, including geopolitical posturing and the search for lunar resources, such as water-ice at the lunar poles, which can be extracted and turned into hydrogen and oxygen propellant for rockets. However, science is also sure to be a major beneficiary.

The moon still has much to tell us about the origin and evolution of the solar system. It also has scientific value as a platform for observational astronomy.