The Chinese have dizzyingly precise words for various family members, but families like mine express emotions through stoic ...

Tourists of time all know one rule: never change the past. Whether it's preventing your own conception or handing the blueprints to a time machine to a younger version of yourself, generating a ...

No one has yet managed to travel through time – at least to our knowledge – but the question of whether or not such a feat would be theoretically possible continues to fascinate scientists. It's a ...

Anyone who's seen "Back to the Future" should surely be familiar with the grandfather paradox. In the movie, Michael J. Fox's ...

Unanswered Questions About The Universe: 25 Shocking Historical Events You Never Knew Existed: If reality makes sense to you, ...

The dream of time travel has fueled stories, films, and scientific debates for generations. The idea that you could step into a machine and reappear in another era has captivated people for as long as ...

We preselected all newsletters you had before unsubscribing.

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy and wide-ranging interest in the technological arts and sciences, Ars is ...