New Galaxy Simulations Bolster Dark Matter Theory

Researchers from the University of California, Irvine used advanced computer modeling to shed light on a lingering cosmic mystery: dark matter. Their findings, published in the Monthly Notices of the Royal Astronomical Society, strongly support the existence of dark matter as a crucial component of our universe.

Dark matter is an invisible substance theorized to comprise most of the universe’s mass. It remains elusive because it doesn’t interact with light, making direct observation impossible. Scientists rely on its gravitational influence to infer its presence.

The team’s simulations compared two realities: one with regular, visible matter, and another incorporating dark matter. Only the model with dark matter successfully replicated the peculiar motions of stars and gas observed in real galaxies.

“These galactic features are expected with dark matter but problematic without it,” said lead author Francisco Mercado. “Our simulations show similar features appear in numerous real galaxies.”

Mercado emphasizes the significance: “If these observations hold true, it strengthens the case for dark matter as the dominant force shaping our universe.”

The findings were corroborated by another research group, initially skeptical about dark matter.

Current estimates suggest dark matter may constitute a staggering 85% of the universe’s mass. However, its elusiveness to direct detection remains a challenge.

This new study offers compelling indirect evidence for dark matter’s existence, paving the way for potential future breakthroughs in directly observing this enigmatic substance.