A team of astronomers has identified a double gravitational lens system with an extraordinary “zig-zag” light path, rewriting the way we view gravitational lenses and their role in unraveling ...

In what is the first discovery of an Einstein zig-zag lens in the universe, a team of international astronomers have sighted two galaxies which are aligned in a way where their gravity acts as a ...

Save guides, add subjects and pick up where you left off with your BBC account. You can spot the zig-zag letters from their zig-zag lines. Let's look at the ‘V’ here. That down up movement mak ...