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

WASHINGTON (Reuters) - Research in the expanding field of space medicine has identified many ways in which a microgravity environment and other factors can meddle with the human body during space ...

A 62-page document written by billionaire Jared Isaacman outlines a sweeping, ambitious, and at times controversial plan for the space agency.

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 ...

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 ...

NATIONAL HARBOR, Md.— A new Space Force planning document predicting future enemy trends through 2040, designed to help officials better acquire key technologies and prioritize missions, should be ...

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 ...

Katie Mack is a theoretical astrophysicist, assistant professor of physics at North Carolina State University and the author of The End of Everything (Astrophysically Speaking). “I’ve been trying to ...