FBI agents remove evidence from the house where three women who had disappeared as teenagers approximately ten years ago, were found alive in Cleveland, Ohio. Amanda Berry, who went missing in 2003, Gina DeJesus, who went missing in 2004, and Michelle Knight, who went missing in 2002, were all found alive in the same house. Photograph: Bill Pugliano/Getty Images.

In the buildup to Christmas 2005, Amanda Berry’s mother bought presents as usual for her daughter. Louwana Miller had neither seen nor heard fr(...)

The structure of DNA was a discovery but one based on practical chemistry

It must be a wonderful thing to discover something so important that the date it occurred becomes an annual day of celebration marked on a cale(...)