Cosmic Mirages Test the Law of Gravity ⚡ экспресс
Original: "Cosmological constraints on viable $$f(R)$$ models using weak lensing"
Distorted light from distant galaxies helped test gravity theories that could replace dark energy.
Links in the knowledge graph 1
Light from distant galaxies is distorted, like a reflection in a funhouse mirror. This weak lensing helps us understand what drives the expansion of the universe: invisible dark energy or gravity itself working differently. New analysis shows that corrections to Newton’s law could explain the acceleration, and their allowable limits have been found.
🎯 When a distant quasar, a lensing galaxy, and a telescope line up, an Einstein ring appears—a perfectly round circle of light.