In Penrose's twistor theory, geometric points are replaced by twistors—entities that most closely resemble stretched, light ray-like shapes. Within this twistor space, Penrose discovered a highly ...

A diagram depicting a twistor -- an extended entity in space and time that can be thought of as a 2-dimensional light ray. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news ...

The eminent theoretical physicist Roger Penrose is worried about the current path of physical research. In Fashion, Faith, and Fantasy in the New Physics of the Universe, he argues that the eponymous ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

A diagram depicting a twistor -- an extended entity in space and time that can be thought of as a 2-dimensional light ray. Credit: Penrose, R., & Rindler, W. (1986). Spinors and Space-Time (Cambridge ...

A new perspective bridges two approaches to understanding quantum gravity. The modern-day theoretical physicist faces a taxing uphill climb. "As we learn more, reality becomes ever more subtle; the ...

The modern-day theoretical physicist faces a taxing uphill climb. "As we learn more, reality becomes ever more subtle; the absolute becomes relative, the fixed becomes dynamical, the definite is laden ...