Claudia de Rham showed how theories of “massive gravity” could potentially get rid of the need for dark energy.
New calculations show how hypothetical particles called gravitons would give rise to a special kind of noise.
Physicists have proposed extra cosmic ingredients that could explain the faster-than-expected expansion of space.
As the founding director of a new institute for fundamental research in Rwanda, the physicist Omololu Akin-Ojo hopes to stem the brain drain of Africa’s brightest minds.
Carlo Rubbia, leader of the bold collider experiment that in 1983 discovered the W and Z bosons, thinks particle physicists should now smash muons together in an innovative “Higgs factory.”