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 ...

Time travel is one of the most captivating tropes in science fiction, inspiring countless stories of adventures through the ages. After all, what’s more tantalizing than the possibility of rewriting ...

The event horizon of a black hole is a spherical or spheroidal region from which nothing, not even light, can escape. But outside the event horizon, the black hole is predicted to emit radiation.

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 ...

With the passing of Stephen Hawking, science has lost not only its most recognizable public figure, but also a remarkable researcher into the nature of black holes. While his final paper may have ...

The black hole information paradox raises a lot of questions. When something goes into a black hole some theories state that ‘physical information’ could be gone. This means that physical states would ...

Ignorance is bliss A cartoon depicting the differences between 'ignorant' observers of mixing gases in the classical and quantum versions of the Gibbs paradox. (Courtesy: Bethan Morris, PhD student at ...

When famed physicist Stephen Hawking passed away earlier this year, he left a scientific legacy that included one of the knottiest paradoxes in modern theoretical physics. Now his final paper has just ...