Tom Kerss F.R.A.S. is an astronomer and author of numerous books about the night sky. Having worked at the Royal Observatory in Greenwich, he now shares his passion for the stars with people all over the world, delivering courses, podcasts and media interviews. Tom loves nothing more than to seek out the darkest and most beautiful skies on Earth, but he does most of his stargazing from his home in London. Find out more about Tom’s projects at tomkerss.co.ukDr. Ryan French is a solar physicist, science communicator and author. He is pursuing the mysteries of the Sun at the forefront of modern solar physics research, using cutting edge telescopes on the ground and in space. His research takes him all over the world, collaborating with the global community of solar physicists. Ryan works to share the wonders of the Sun and space with the public, through social media, museums and observatories, and on television and radio. Keep up to date with Ryan's projects at www.ryanjfrench.com