An expanding universe complicates this picture just a little bit, because the universe absolutely refuses to be ...

Alex Roddie takes a look at seven of the best hiking apps to help you find your way in the mountains as an additional ...

It takes light a single day to travel 16 billion miles. The Voyager 1 probe will need a little longer, just 49 years.

The effect, first predicted over 60 years ago and regarding objects traveling near the speed of light, has been lent support ...

Texas law bars drivers from going faster than is reasonable for the conditions. Put simply, motorists must adjust their speed to stay safe, and the appropriate speed depends on what’s happening around ...

Quick reference 10K Pace chart to figure out your per mile pace for a goal finish time. Easy to use mile splits for training.