Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

Can we journey through time? Sci-fi author Dete Meserve presents a compelling case for our future in the past. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

From the publisher of Blue Prince and developer Exnilo Studio comes what looks like another mind-bending puzzle game: Revealed at the PC Gaming Show: Most Wanted, Rivage sees you stuck in a time loop ...

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 ...

Fly about 2,600 light-years to Hubble Space Telescope imagery of the Cygnus loop nebula. See images from 2001 and 2020.

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 ...

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 ...

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 ...