Add Yahoo as a preferred source to see more of our stories on Google. The National Institute of Standards and Technology (NIST) fulfills a vital role in national security: employing the sort of people ...

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the difference, showing that Mars clocks tick slightly faster—and fluctuate over the ...

Charles Darwin worried that the fossil record looked strangely abrupt, with complex animals appearing in a geological instant ...

The result is that the team's calculation predicts that time on Mars runs 477 microseconds per day faster, with a fluctuation of 266 microseconds that needs to be accounted for at any point in the ...