At the turn of the century, it sounded as if string theory could give us big answers about the universe. Well… has it?

String theory unifies all the forces of nature. Forces that seem very different, such as gravity and electricity, are deeply ...

A recent experiment at Fermilab has delivered intriguing results that challenge standard predictions, adding fuel to the ...

In 1980, Stephen Hawking gave his first lecture as Lucasian Professor at the University of Cambridge. The lecture was called ...

Kellogg Stelle was a professor of physics at Imperial College London for decades until his death last month. In 1977, he developed a particle theory of gravity that’s renormalizable, but the theory’s ...

In A Nutshell When two different types of cosmic strings become linked in the early universe, they form stable knots that ...

Encouraged by successes in understanding black holes, theoretical physicists are applying what they’ve learned to whole ...

When we think creatively, produce novel ideas, or otherwise have “Eureka” moments, we may actually unlock access to a ...

Topology has real implications in the world. For example, topological techniques can be brought to bear on calculating the trajectories of spacecraft, and missions have been saved by the efforts of ...

If so, laws might change when the universe itself changes phase. In the early universe, as temperatures and densities shifted, forces split apart from a unified origin. What we call “laws” may be like ...

His decoding of the blueprint for life with Francis H.C. Crick made him one of the most important scientists of the 20th ...