Two marathoners clocked in under two hours in London. We talk to one researcher about the role of shoes in making the impossible possible.
Copyright 2026 NPR
Jeffrey Pierre
Juana Summers
Juana Summers is a co-host of NPR's All Things Considered, alongside Ailsa Chang, Ari Shapiro and Mary Louise Kelly. She joined All Things Considered in June 2022.
Justine Kenin
Justine Kenin is an editor on All Things Considered. She joined NPR in 1999 as an intern. Nothing makes her happier than getting a book in the right reader's hands – most especially her own. [Copyright 2025 NPR]