Clumps and clusters of galaxies exhibit gravitational effects on the light-and-matter behind them ... [+] due to the effects of weak gravitational lensing. The formation of cosmic structure, on both large scales and small scales, is highly dependent on how ... [+] dark matter and normal matter interact. Despite the indirect evidence for dark matter, we'd love to be able to detect it directly, which is something that can only happen if there's a non-zero cross-section between normal matter and dark matter. In modern cosmology, a large-scale web of dark matter and normal matter permeates the Universe. Wikimedia Commons user TallJimboAdditionally, weak gravitational lenses reveal dark matter as well.

Source: Forbes August 17, 2020 06:00 UTC