Climate change left its signature on the atmosphere early in the industrial revolution, reveals a thought experiment investigation ...

In April, scientists announced that they had used NASA’s James Webb Space Telescope to find a potential signature of alien life in the glow of a distant planet. Other scientists were quick to ...

Scientists, experts say, need to help protect democracy, “the system of government in which science, health and humanity are ...

A rare broadside of the "Declaration of Independence, July 1776, on view at Seth Kaller Inc., Historic Documents & Legacy ...

BARBARA CLARK SMITH is the curator of political history at the Smithsonian's National Museum of American History.