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 ...

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 ...

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 ...

Follow the space program since the moon landing in the four-part documentary "Once Upon a Time in Space". Here’s how to watch it anywhere on the planet. When you purchase through links on our site, we ...

Ever wonder what time it is on the moon? Soon there will be an answer to that question. The White House on Tuesday directed NASA to establish a first-ever unified standard of time for the moon and ...

Universidad de Murcia provides funding as a member of The Conversation ES. Expressions linking space to time are a common part of our day to day lives. You might say the morning “flew by”, or that ...

Photonic space-time crystals are materials that could increase the performance and efficiency of wireless communication or laser technologies. They feature a periodic arrangement of special materials ...

Time dilation, brought about by the relativistic expansion of space, has resulted in the observed slowing of 'clocks' in the early universe. When you purchase through links on our site, we may earn an ...

Imagine going on a weeklong business trip and not coming home until the following year. That may be the situation for U.S. astronauts Sunita Williams and Butch Wilmore, whose eight-day mission to the ...