The most precise timekeepers ever made, atomic clocks, might one day help robotic and crewed missions on Mars stay in sync with each other, as well as enable the equivalent of GPS on the red planet.

Can Mars let humans age faster? It sounds more poetic than reality, but it may be true technically. Two identical clocks: One on Earth other on Mars, after months, they slowly drift apart. Space ...

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 ...

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 ...

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet’s intricate timekeeping system, built with atomic clocks, GPS satellites and high-speed telecommunications ...