Gravitational lensing often evokes images of a cosmic funhouse mirror: duplicated galaxies, dramatic arcs and distorted shapes. But the web-like, large-scale structure throughout the universe also bends light in a weaker, less obvious way. This phenomenon, known as cosmic shear, can provide clues about the role of dark energy in shaping the universe.
Gravitational lensing often evokes images of a cosmic funhouse mirror: duplicated galaxies, dramatic arcs and distorted shapes. But the web-like, large-scale structure throughout the universe also bends light in a weaker, less obvious way. This phenomenon, known as cosmic shear, can provide clues about the role of dark energy in shaping the universe.
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