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 ...

Time feels like the most familiar thing in the world, yet it hides one of physics’ hardest questions: why do we only remember ...

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.

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 ...

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 ...

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 ...

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 ...

The paradox that explains how life maintains order against entropy. 'A bright light': Brown University student identified as shooting victim by church Sen. Chris Murphy says Trump engaged in a ...

Glass, sand, toothpaste, and silly putty are among the various materials that can act like a solid or a liquid, depending on the conditions. For example, we can walk across a sandy beach without ...