Dani Robertson
Recent articles by Dani Robertson
How dark is your night sky? Here's how astronomers measure darkness around the world
A guide to the Bortle Scale for measuring sky darkness
Bright light at night is changing our environment, and not just for stargazers. Easy tips for tackling light pollution
How Prosiect Nos is helping to protect Wales's dark skies
Can we save the UK from light pollution? In Wales, Prosiect Nos is seeking to improve the country's already-outstanding dark skies.
