Astronomers have broken two records in one thanks to an incredible serendipitous alignment of cosmic objects. It's the highest resolution detection of a gravitationally lensed radio arc, and within it, a small kink indicating the presence of a small gravitational mass – the smallest ever seen, creating this effect at cosmic distances. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

Dense objects can warp spacetime , making it act like a lens. A dense foreground object, such as a star, a black hole, but also a galaxy or a galaxy cluster, can magnify the light of a distant background galaxy.

This is the case of JVAS B1938+666, an elliptical galaxy located 6.5 billion light-years from us, magnifying the light of an object that is over

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