A group of brain cells called orexin neurons appears to help us keep working when reaching a reward becomes increasingly ...

An exceptionally preserved snake fossil from Brazil reveals that early snakes were far more diverse than scientists once ...

Historic wildfires scorched huge areas of Spain and France, with one Spanish blaze burning an area about the size of New York ...

August brings four major celestial events, including a solar eclipse and the peak of the Perseid meteor shower. Dark New Moon skies could make the Perseids especially impressive, while Venus will ...