The unidentified woman had been working with the group Doctors Without Borders in treating Ebola virus disease patients in Sierra Leone.
A 2-year-old who died from Ebola virus disease traveled on a bus while she was symptomatic and likely infectious.
Alan Eustace, 57, a Google Inc. senior vice president and veteran pilot, broke a record set by Austrian skydiver Felix Baumgartner.
Despite an international campaign seeking the woman's release, she was hanged by Iranian authorities at dawn.
Eyewitnesses and family members have identified Jaylen Fryberg as the gunman who opened fired at Marysville-Pilchuck High School Friday.
Germany's largest lender is reportedly on the cusp of a deal over Libor-rigging allegations, which have cost the bank billions already.
For years, scientists have attempted to create cells that would not only kill cancerous cells but also do it without harming healthy cells.