Johnson & Johnson's one-dose coronavirus vaccine performed well in its recent trial.

Physicist Stephen Hawking said pollution coupled with human greed and stupidity were the biggest threats to humanity.

Jim Bridenstine leads NASA, America's preeminent scientific agency, tasked with exploring outer space.

Research has found that early trauma can lead to “limbic scarring” on the brain.

Republican Senator Susan Collins has killed the latest Republican attempt to repeal and replace the Affordable Care Act.

Brain activity in transgender people resembles the brain activity of their gender identity, rather than their sex.

Today on Twitter, a woman accused conservative actor James Woods of attempting to pick her up when she and her friend were minors.

President Donald Trump blames Puerto Rico for its looming humanitarian crisis. He bashes the U.S. territory in a series of tweets for its debts to Wall Street and poor infrastructure. (Photo Credit: Gage Skidmore/Flickr)