The 2020 Nobel Prize in Chemistry was awarded to two women who pioneered a new genetic technology that has captured the public imagination and revolutionised science. Kevin Davies tells the story of how CRISPR changed the future in less than a decade.

When the international phone call came, at precisely 2:53 am Pacific time, the country code showed the UK, not Sweden. Heidi Ledford, a reporter for the journal Nature, had the unexpected honor of informing a groggy Jennifer Doudna that she’d won the 2020 Nobel Prize for Chemistry, sharing it with her former collaborator, French microbiologist Emmanuelle Charpentier.[1] ](Doudna had slept through the official call from Göran Hansson, Secretary General of the Royal Swedish Academy of Sciences.)

“What a testament to Doudna’s work ethic,” Ledford tweeted later. “I certainly wouldn’t have taken a call from me at that hour.”

Hansson had more luck reaching Charpentier, who was working in the same time zone in her office at the Max Planck Unit for the Science of Pathogens in Berlin. After gleefully receiving the news, Charpentier encountered some Nobel bureaucracy as she was asked to confirm her date of birth, address and sworn to secrecy for an hour or so until the official public announcement. She reflected the rollercoaster ride she, along with the rest of the international community studying CRISPR, had been on for the past decade. The science had moved so fast, she said, “I was losing the notion of time.”