The coronavirus pandemic took the world by surprise. But experts had been predicting something similar for decades. Which other threats deserve more attention—from solar flares and rogue AI to antibiotic resistance? And how has the pandemic affected efforts to prepare for them? Also, the mission to crash a space probe into an asteroid, and how it could help protect the Earth in future. Tom Standage hosts.   Subscribe to The Economist for full access to print, digital and audio editions: www.economist.com/podcastoffer    Music by Chris Zabriskie "Candlepower" (CC by 4.0)   See acast.com/privacy for privacy and opt-out information.