'No matter what your traditions are, someone is going to break them.' When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A new documentary short ...

The International Space Station is turning 25 this month. Twenty-five years of people from all over the world living together and working together in space. At the same time, it is starting to wrap up ...

One of the most awkward parts of writing a book is that, eventually, authors have to ask people for “blurbs” – the endorsements that you see on the cover of a book, encouraging you to buy it. I am now ...

Israeli astronaut Ilan Ramon had a question before going into space: How would he mark Sabbath, the Jewish day of rest, from orbit? Sabbath begins Friday at sunset and ends Saturday after sunset. But ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The idea that space-time exists is no more ...

Einstein's theory of general relativity views time similarly to width, height, and length. As such, both time and space can be curved by gravity. This effectively means that time is slower the closer ...

Oftentimes, we think of space as an endless, mostly empty vacuum, a silent backdrop where planets, stars, and galaxies play out their dance. We also think of time as something separate, a steady ...