The great silence: why haven’t we found any aliens yet?

We are used to the idea that our fellow humans might intentionally mislead or manipulate us, but the idea that machines can now do the same is deeply unsettling. Researchers are racing to find solutions before it’s too late. By Snigdha Poonam. Read by Maya Saroya. Help support our independent journalism at theguardian.com/longreadpod

We are raiding the Guardian long read archives to bring you some classic pieces from years past, with new introductions from the authors. This week, from 2023: Landfill sites have swallowed many a beauty spot along the Thames estuary in the past 50 years. Now, as those dumps start to disgorge tonnes of mouldering detritus into the river, it truly feels like the Age of Consequences By Tim Burrows. Read by Sam Swainsbury. Help support our independent journalism at theguardian.com/longreadpod

Many hoped that the march of technology would usher in an egalitarian utopia – but some foresaw the threat it would pose to liberal society. Why did nobody listen? By Jill Lepore. Read by Laurel Lefkow. Help support our independent journalism at theguardian.com/longreadpod

A young activist thought her father’s disapproval of her leftwing views was purely political. Then one evening, a kiss goodbye sent her on a remarkable journey that continues today By Meaghan Beatley. Read by Cynthia Farrell. Help support our independent journalism at theguardian.com/longreadpod

We are raiding the Guardian long read archives to bring you some classic pieces from years past, with new introductions from the authors. This week, from 2023: The civilians of Sudan have been trying to throw off military rule for decades, but now find themselves caught in the middle of a deadly power struggle between former allies turned bitter opponents Written and read by Nesrine Malik. Help support our independent journalism at theguardian.com/longreadpod

Given the size and age of the universe, it should be full of species with technology far more advanced than our own. So where are they? By Adam Kirsch. Read by James Sobol Kelly. Help support our independent journalism at theguardian.com/longreadpod

Across the world, hundreds of people have come to believe they have made extraordinary scientific discoveries with AI chatbots such as ChatGPT, Claude and Gemini. Others say their AI has ‘awakened’, or is leading them to a higher spiritual realm. The Guardian journalist Michael Safi begins investigating a phenomenon labelled ‘AI psychosis’, travelling to the US to meet two people who have been on weird journeys with their chatbots. Help support our independent journalism at theguardian.com/longreadpod

Daniel was working at a market in Lagos when he was given the chance to start anew in the UK. He had no idea what was expected of him in return By Alexis Okeowo. Read by Nneka Okoye. Help support our independent journalism at theguardian.com/longreadpod

We are raiding the Guardian long read archives to bring you some classic pieces from years past, with new introductions from the authors. This week, from 2023: While the world becomes drier, profit and pollution are draining our resources. We have to change our approach By Tim Smedley. Read by Sid Sagar. Help support our independent journalism at theguardian.com/longreadpod

I joined Marilyn Monroe, Walter White, Ozzy Osbourne and other tribute artists on a cruise where imitation is its own art form By Mina Tavakoli. Read by Norma Butikofer. Help support our independent journalism at theguardian.com/longreadpod