Time passes, on average, 477 millionths of a second faster per day on Mars than on Earth thanks to the impact of Albert Einstein's theory of general relativity. Scientists say this will have ...

Time moves differently on Mars — not in the Tibetan philosophy sense of the word, but in a measurable, physics-will-ruin-your-mission kind of way that's giving NASA engineers a real headache. As the ...

Add Yahoo as a preferred source to see more of our stories on Google. This image shows the globe of Mars set against a dark background. The disc of the planet features yellow, orange, blue and green ...

Here on Earth, we take for granted the fact that my watch displays the same time as everybody else's watch does, at least within my time zone. And when you step back and think about it, it is kind of ...

On Earth, knowing the time feels simple. Your phone pings the same second as a GPS satellite and an atomic clock in a lab. Everything is wired together so well that you rarely think about the ...

"A three-body problem is extremely complicated. Now we're dealing with four: the sun, Earth, the moon and Mars. The heavy lifting was more challenging than I initially thought." When you purchase ...