Ian Ridpath is an internationally renowned writer and editor. His works include the Oxford Dictionary of Astronomy and popular series of night sky guides for beginners, including The Collins Stars and Planets Guide and Collins Gem Stars. Ian is the recipient of the Astronomical Society of the Pacific’s Klumpke-Roberts Award for outstanding contributions to the public understanding and appreciation of astronomy. Ian is based in London, UK.

Mary McIntyre is an astronomer, astrophotographer, astronomy and space artist, astronomy communicator and author. With a life-long interest in astronomy, Mary is passionate about astronomy outreach and ensuring inclusion for all in the joy of stargazing. Mary is a Fellow of the Royal Astronomical Society, a member of the British Astronomical Association, is on the council of the Society for Popular Astronomy and is involved with the Global Meteor Network.

Rachel Federman is a writer, musician, and nonprofit consultant who has written over 20 books for adults and children, including The Mindful Gardener (Clarkson Potter, 2017) and Test Your Dog’s IQ (HarperCollins, 2016). She once saw three mermaids in the fountain at Washington Square Park in New York City. No one seemed to know how they got there.