How does the Oxford vaccine work?, Space X sea cartographer satellite goes to space & K-pop's aespa launch AI avatars

AstraZeneca and Oxford University report their vaccine could prevent up to 90% of people getting Covid-19, so how does it work? And, while we wait for the jab to be rolled out, scientists warn that as we head into winter, keeping a window cracked open could reduce the risk of infection by 70%. Plus, Space X launch a sea cartographer satellite and, K-pop band aespa introduce fans to their AI avatars.Listen to our other podcasts:Women Tech Charge: interviews with incredible women leading in Science, Technology, Engineering and MathsThe Leader: a daily news podcast helping you make sense of the day’s most important storiesAsk your Smart Speaker to ‘play the news from the Evening Standard'Visit standard.co.uk/tech for more tech news Hosted on Acast. See acast.com/privacy for more information.