A Hawaii man who spent 30 years in prison for a murder he long denied committing declared the day “Freedom Friday” and said he was eager to visit his mother after a judge ordered him released because ...

Each of these things — along with every other organism on Earth — contains the molecular instructions for life, called deoxyribonucleic acid or DNA. Encoded within this DNA are the directions ...

In the wild, titanoboa probably ate large crocodiles, fish and other snakes—but if there were a titanoboa at the National Zoo today, what would the zoo keepers feed it? What Is an Aurora?