An almost impossible alignment of galaxies that forms a giant magnifying lens could give astronomers an unprecedented deep view of the universe. The Carousel Lens—named for its concentric circular ...

I played with lenses as a kid, fascinated by their seemingly magical ability to turn the world upside down, shrink and magnify it. The word lens comes from the Latin word for 'lentil' and refers to ...

We could drastically overcount the number of galaxies present in the early Universe due to the impact of gravitational lensing. Wow. Is the effect really that similar to a concave/convex lens? The pic ...