A fundamental constant of the universe may not be so constant after all, according to a new study. Recent observations of distant galaxies suggest that the strength of the electromagnetic force the so ...

A crucial number that rules the universe goes big in a strange quantum material. The fine-structure constant is about 10 times its normal value in a type of material called quantum spin ice, ...

Kwiat, D. (2026) Planck’s Constant—A Bridge to Charge and Entanglement. Journal of High Energy Physics, Gravitation and Cosmology, 12, 471-483. doi: 10.4236/jhepgc.2026.121026 .

Images made with the W.M. Keck Observatory in Hawaii show how light from two distant galaxies is distorted into multiple images. UC Davis astronomers have made a new estimate of the Hubble Constant, ...

Learn how to calculate a satellite’s momentum and position under a constant force! 🛰️📐 This physics tutorial explains step by step how to model motion, apply Newton’s laws, and analyze orbital ...

SANTA BARBARA, Calif. — The word “crisis” hung in the air from the very beginning of the meeting. In a room just steps from the ocean in Santa Barbara, astronomers and physicists shifted restlessly in ...

Planck's constant reveals the quantum world's fundamental energy levels. It shows how light and matter exist in discrete units (quanta). This constant defines limits to our knowledge of particle ...

Angle of inclination: schematic illustrating how observers on Earth see the GW170817 jet, which is shown in orange and pointing upwards. (Courtesy: Sophia Dagnello/NRAO/AUI/NSF) The puzzling ...

An upcoming change to SI units – due to be officially approved this month – will mark the end of a long journey from defining quantities in terms of objects to using precise, unchanging and universal ...