Which large-scale mapping technique helps refine models of structure formation related to Dark Matter?
Answer
Increasingly precise gravitational lensing surveys
To better understand how structures formed in the early universe, researchers focus on mapping the distribution of dark matter using high-precision gravitational lensing surveys. Gravitational lensing occurs when the massive presence of dark matter bends the light originating from objects situated behind it. By meticulously measuring the degree and pattern of this light distortion, cosmologists can create detailed maps showing where the unseen mass resides, which directly informs models about the early clumping and formation of cosmic structures.
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