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The James Webb Space Telescope is providing astronomers with images and data that reveal secrets from the earliest era of the universe. NASA/STScI

How the James Webb Space Telescope has revealed a surprisingly bright, complex and element-filled early universe – podcast

It has been one year since the launch of the James Webb Space Telescope and six months since the first pictures were released. Astronomers are already learning unexpected things about the early universe.
In deep brain stimulation, electrodes – the pale white lines – are implanted into a patient’s brain and connected to a battery in a person’s chest. Jmarchn/Wikimedia Commons

Treating mental illness with electricity marries old ideas with modern tech and understanding of the brain – podcast

Deep brain stimulation and trasncranial magnetic stimulation treat mental illness by sending electrical currents into parts of the brain. Every new patient provides researchers with a wealth of information. Listen to The Conversation Weekly podcast.
Fossil fuel investors can use an obscure legal mechanism found in many international trade agreements to sue countries if their projects are blocked. curraheeshutter via Shutterstock

A secretive legal system lets fossil fuel investors sue countries over policies to keep oil and gas in the ground – podcast

Experts are concerned that a legal mechanism called investor-state dispute settlement could affect countries’ moves to cut fossil fuel emissions. Listen to The Conversation Weekly.
One of the recent shifts in podcasting has been the introduction of paywalls and exclusive content. Peter Dazeley/Getty Images

How corporate takeovers are fundamentally changing podcasting

By implementing paywalls, making exclusive content deals and incorporating ad tech, big media companies have reshaped what was once an entirely free and open ecosystem.

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