A controversial theory suggests the observable universe is the result of matter rebounding after the collapse of a black hole in another parent universe.

Subatomic particles such as quarks can pair up when linked by ‘strings’ of force fields — and release energy when the strings ...

Hennigar's team used modified gravity to deal with the singularity, but scientists say that general relativity and quantum mechanics should be combined. The problems with string theory, however, ...

By using light to emulate the structure of space-time, researchers can better understand black holes – and the exotic objects ...

New findings from the University of Bonn challenge the assumptions of the standard cosmological model. The faint "afterglow" ...

Earlier this year, new research suggested a potential solution to one of the most troubling aspects of modern physics — that ...

String theory proposes that the universe’s fundamental particles aren’t points but tiny vibrating strings, whose different modes create the variety of matter and forces, including gravity through the ...

The Physics of Gravity: Einstein vs. Quantum Gravity General relativity describes gravity as spacetime curvature but conflicts with quantum mechanics at black hole singularities. Loop quantum gravity ...

By adapting mathematical techniques used in particle physics, researchers in Germany have developed an approach that could ...

Pioneer of general relativity and gravitational-wave theories saw her work confirmed by observations 65 years later.

A series of studies sheds light on the origins and characteristics of intermediate-mass black holes. In the world of black holes, there are generally three size categories: stellar-mass black ...

Physicists have made a striking leap toward solving one of science’s deepest riddles—what lies at the heart of a black hole.