The familiar satisfaction of tracking miles on a fitness device might give runners a false sense of achievement. While logging miles and hitting distance goals has long been a key metric for tracking ...

A spacecraft traveling at 99 percent the speed of light toward Alpha Centauri would cross 4.3 light-years in what feels like months to its crew, while decades tick by on Earth. That asymmetry is not ...

No matter how many times I’ve been told (or written about) the importance of a slow run, I cannot translate it into my training. This is not to say I am the fastest runner. My half marathon goal time ...

I have a question regarding time dilation that I thought of last night listening to an audiobook, Project Hail Mary. I am an amateur astrophotographer, and marvel at the distance to deep-space objects ...