Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the ...

"2.8 days is the average expectation value for time to the first collision." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. How long would it ...

In early January the sun does not rise in Kashgar, in China’s far west, until after 10am. Across the border, in eastern Afghanistan, it rises before 7am. That difference is the greatest jump in time ...

NIST scientists calculated that clocks on Mars would be an average of 477 millionths of a second faster than clocks telling ...