Astronomy programmes officer at the Royal Observatory in Greenwich. She holds a PhD in space dust.

Storm Dunlop is an experienced Astronomy and meteorology author and

translator. Books include Clouds (Haynes, 2019), Gem Weather (Collins,

2012), How to Read the Weather (National Trust, 2018), Meteorology

Manual (Haynes, 2014), Practical Astronomy (Philip's, 2012) and is the

lead author for the bestselling annual Guide to the Night Sky (Collins).

Fellow of the Royal Astronomical Society, the Royal Meteorological

Society and a member of the International Astronomical Union.

Wil Tirion was trained in graphic arts and always had an interest in astronomy and especially star charts. In 1983 he became a self-employed Uranographer, a specialist in drawing charts of the night sky. Since then he has contributed to many books including the bestselling Collins Guide to the Night Sky annual. In 1987 he received the 'Dr. J. van der Bilt-prize', a Dutch award for amateur astronomers. In 1993 he had a minor planet named after him: (4648) Tirion = 1931 UE.

The Royal Observatory, Greenwich is the home of Greenwich Mean Time and the Prime Meridian of the World, making it the official starting point for each new day and year. It is also home to London's only planetarium, the Harrison timekeepers and the UK's largest refracting telescope. It runs the annual Astronomy Photographer of the Year competition.