Darkness can travel faster than the speed of light — without breaking Einstein’s relativity
A dark point inside a beam of light should not be much of a traveler. Yet in a…
Active black holes are more common than we thought
Dwarf galaxy Henize 2-10 is known to house an active central black hole. However, the question of how…
Physicist Edward Witten on the future of quantum theory
Edward Witten is an American theoretical physicist and professor emeritus at the Institute for Advanced Study. His work…
String-sliding vibrational modes govern the boson peak and phonon anomalies in amorphous materials
Zeller, R. C. & Pohl, R. O. Thermal conductivity and specific heat of noncrystalline solids. Phys. Rev. B…
2,297 feet underground, a giant Chinese detector catches ghost particles changing ‘flavors’
Scientists are using a detector in China, positioned 2,297 feet below the surface, to investigate neutrinos, the so-called…
Scientists Uncover New Evidence of Mysterious ‘Time-Reversal Symmetry Breaking’ in This ‘Exotic’ Kagome Metal
Physicists report the discovery of new evidence for a mysterious quantum state in an unusual class of materials,…
Optical multistability in a compact microcavity enabled by near-exceptional coupling
Leopold, D. A. & Logothetis, N. K. Activity changes in early visual cortex reflect monkeys’ percepts during binocular…
Breaking symmetry yields a low-loss out-of-plane tunable microwave dielectric
First-principles calculations All calculations utilize the Vienna ab initio software package (v. 6.2.0), which implements the projector augmented-wave…
What Would Happen if the Sun Stopped? Part 2: Kelvin and Helmholtz at the Ready
(This is Part 2 of a series on what would happen if the Sun stopped. Read Part 1…
Easy-to-use calculation tool estimates out-of-field neutron dose during proton therapy – Physics World
Easy-to-use calculation tool estimates out-of-field neutron dose during proton therapy – Physics World Skip to main content Discover…
Scientists Built A Tiny ‘Universe’ And Let Time Grow Inside It
The ‘cloud’ inside the glass cell is a magneto-optical trap of rubidium atoms at a temperature of ~0.0001…
At least two trillion galaxies fill the observable universe — ten times the old estimate — and most are too faint for any telescope today to see, a 2016 study found
Two trillion, and most of them out of sight In 2016 a team led by Christopher Conselice at…