A 'leap second' will be added to clocks on December 31, 2016, to maintain the relationship between the world's standardized times.
Google celebrates the 155th birthday of Nettie Stevens, the biologist who discovered that sex is determined by X and Y chromosomes, at a time when women are seeing their greatest scientific success in biology.
Models show that the methane oceans on Saturn's largest moon, Titan, could yield the basic preconditions for life due to its hydrogen cyanide, which can help build amino acids and nucleic acids.
NASA astronaut Kathleen Rubins may become the first person to sequence DNA in space. But first she and her crew-mates will spend two days en route to the space station.
Scientists are piecing together clues into the history of Mars, with an eye toward determining what happened to the Red Planet's once-dense atmosphere.