The Yorkshire Dales and North York Moors national parks have been designated International Dark Sky Reserves.
The International Dark Sky Association has granted the status to the two parks, which cover over 3,500 square kilometres.
The announcement represents one of the largest areas in Europe to be simultaneously designated.
Both national parks, as part of a co-ordinated effort, have worked hard over several years to achieve this award, gaining support from councils, parishes, landowners, businesses and astronomical experts.
Jim Bailey, chairman of the North York Moors National Park Authority, said: “’It’s a wonderful thing to see a meteorite streak across the night sky, or to look up and appreciate the brilliance of the Milky Way.
“As a child I took these sights for granted, but now it’s absolutely something we need to protect for generations to come.
“This designation as an International Dark Sky Reserve is the culmination of immense dedication and teamwork, and it will continue as we encourage more people to think carefully about our night time environment.
“From helping nocturnal wildlife to providing a boost for off-season tourism, the North York Moors looks set to have a better, darker future.”
Neil Heseltine, chair of the Yorkshire Dales National Park Authority, said: “Those lucky enough to live in the Yorkshire Dales National Park know what it is to experience the wonder of some of the darkest skies in the country, and it’s thrilling that the Dales has received recognition for one of its most special qualities.
“Designation provides a fantastic opportunity to encourage tourism in the autumn and winter months, and to work with local authorities, businesses and communities to ensure our dark skies are protected.
“I would like to thank all those who took the time to offer their support, especially our parish councils, and everyone who has collectively helped to bring the National Park this incredible accolade.”
In addition to global recognition of the national parks’ starscapes, designation also provides an opportunity to promote locations, events and businesses which provide outstanding opportunities to look up into the night sky.
As well as enhancing habitats for wildlife, improving health and wellbeing and bringing increased economic benefit to the local tourist industry.
The ambition is to enhance the areas dark skies still further by promoting the importance of dark sky-friendly lighting, therefore reducing unnecessary consumption of electricity and minimising carbon footprints and energy costs for households.