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"We are talking partly about jobs, skills and investment," he said. "On top of that we have a community benefit fund which is worth over £30m over the next 45 years going directly to communities around this plan."

The possibility of extra funding is important to local charities like Little Lounge, which supports children in their early years, and their families in Cilfynydd.

Katie Hadley, from Little Lounge, said: "I want to find out more about what [the wind farm] could offer us as a small community.

"I can understand that people will have questions about the development, because this is our village and we want to keep our beautiful surroundings.

The Nasa probe that struck an asteroid in October to try to deflect its path had a bigger effect because of all the debris it kicked out.

The Dart mission slammed into egg-shaped Dimorphos to demonstrate how hazardous rocks posing a threat to the Earth could be deflected.

It was very successful, but even more so because the impact dug up a million kilograms of surface material.

When this shot out into space it boosted the momentum exchange.

Scientists working on the project have even been able to put a value on the effectiveness, a quantity they call "beta". It's 3.6.