Einstein cross

English Etymology From en Einstein cross en Albert Einstein. From the shape of a cross, of four points at roughly square angles around a central object, caused by distortions in the path of light's travel due to Einsteinian relativity (Albert Einstein's general relativity) creating four points out of a single light source behind the off-center central object. An on-center central object results in an Einstein ring.. Noun en astronomy physics A gravitational lens configuration resulting in four duplicated images of the back ground image around the central gravitationally lensing object, in a cross configuration. Derived terms en Einstein Cross the first discovered gravitationally-lensed quasar in this configuration Related terms en Einstein ring Anagrams en ceeiinnorssst intercessions recensionists