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 ...

In a series of breakthrough papers, theoretical physicists have come tantalizingly close to resolving the black hole information paradox that has entranced and bedeviled them for nearly 50 years.

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 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 ...

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 paradox that explains how life maintains order against entropy. Why Zara Larsson embraced the dolphins and glitter on her ...

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 ...

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 ...