Matthew M. Wielicki has criticized the scientific consensus on global warming as alarmist. Now he’ll oversee a major federal ...

Proposed federal rules would rely on political appointees to decide how a lot of U.S. science gets done. History shows the ...

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

Artificial intelligence tools have remarkably broad knowledge about the world, but some of it is unsavory or dangerous. Tech firms try to prevent their chatbots from discussing certain topics such as ...