Trial over murder of Burkina Faso’s former president begins

Polling stations open in Chad for a presidential election that will bring transition to a close.

Researchers used a CRISPR-Cas9 tool to restore vision in adults and children with congenital blindness.

Monday was voting day in Chad, where nearly 8 million voters were eligible to choose their next president, after three years of military rule under Mahamat Idriss Déby. Analysts widely expect the incumbent to win.