Three billion years ago, you could have stood on Mars and watched a river spill into a sea. That picture is still speculative ...

Get ready for your aha moment: Every weekday, host Meghna Chakrabarti pierces your news bubble to expose the whole story. Getting answers to the questions that need to be asked, examining our history ...

Only 88 songs have debuted atop the Billboard Hot 100 since the chart was launched in 1958. "Aperture" by Harry Styles is the most recent song to achieve this feat. Drake has the most entries with ...