U.S. President Donald Trump. (AP Photo/Christian Chavez) A group of migrants wait to be processed between the border walls ...

When high explosives are subjected to sudden shock waves, such as from an impact or detonation, tiny regions of intense ...

The National Institute for Standards and Technology’s new harm reduction initiative is helping prevent needless deaths.

The government will freeze $2 billion in funds because the university refused to comply with its demands. Harvard leaders believed saying no was worth the risk. 7 min read Trump Threatens Harvard ...