Despite promises of reform, exploitation remains endemic in India’s sandstone industry, with children doing dangerous work for low pay – often to decorate driveways and gardens thousands of miles away. By Romita Saluja. Help support our independent journalism at theguardian.com/longreadpod

Advances in fields such as spectrometry and gene sequencing are unleashing torrents of new data about the ancient world – and could offer answers to questions we never even knew to ask. By Jacob Mikanowski. Help support our independent journalism at theguardian.com/longreadpod