All those nagging questions you have about the universe are answered here, like Is there a dark side to the Moon? What happens when a comet hits the sun? Do the Martian canals have any water in them? Is the moon hot inside? What would happen if the sun were to collide with a black hole? Mars has polar ice caps: could polar bears live on Mars? If I could go back to the time of the dinosaurs, would the sky look the same as it does today? and many more.
Used availability for Patrick Moore's Can You Play Cricket on Mars?