Even as the Jan. 6 hearings play out, election misinformation keeps spreading. NPR tracked four leaders preaching false information about election fraud at hundreds of grassroots events nationwide.

For centuries, scientists and historians have wondered where the Black Death — the deadliest pandemic in recorded history — came from. New research sheds light on the ancient disease.

Researchers have found that certain viruses may have a trick up their sleeve that can make humans more attractive to mosquitoes. The study also revealed a possible remedy.