Making science sexy is a feat that few presenters have pulled off, but in Cox’s hands even vulcanology takes on an erotic dimension that borders on the pornographic, with loving, lingering shots of alien planets and the infernal activities on Io described, with lip-smacking relish, as ‘hot volcanic action’. Make no mistake, this is science top-shelf style. Elsewhere, we learn that asteroids swarm around our solar system like angry bees, and that the influence of Jupiter’s gravity could fling one of these vast killer rocks into our collective faces at any given moment. It’s therefore unsurprising that boffins in observatories are scanning the night sky with anxious eyes, no doubt with Bruce Willis’ telephone number on speed dial. I was also disappointed to learn of the tempestuous volcanoes on Jupiter’s closest moon, Io. Far from the cold, deserted mining planet depicted in Peter Hyams’s western-in-space movie Outland, it’s a world of immense heat and spewing lava. It’s therefore unlikely that Sean Connery will ever go there to hunt down bad guys with a shotgun. But while rain is a constant source of gloom and lugubrious conversation in Blighty, it’s our planet’s precipitation that cleanses the atmosphere of carbon dioxide and harmful volcanic gases. Without rain, Earth would be a scorched ball of rock like Venus. Scientists describe Earth as the Goldilocks planet, a world that is neither too large nor too small, with just the right conditions to support the abundance of life that is absent in other planets. By the same token, Wonders Of The Solar System is the Goldilocks science programme: where other documentaries have proved too dumbed-down or alternately mind-numbingly technical, Professor Cox has created a series that delivers its entertainment and sexy science in perfectly equal measures.