Dark Matter -

It does not interact with electromagnetic forces, meaning it is completely transparent.

Scientists discovered dark matter not by seeing it, but by noticing that the universe's "math" didn't add up without it. Galaxy Rotation Curves

Most evidence suggests dark matter is "cold," meaning its particles move slowly relative to the speed of light. 🔭 Key Evidence Dark Matter

The exact identity of dark matter remains unknown, though several leading theories exist: The quest for dark matter with Matt Bothwell

In the 1970s, astronomer Vera Rubin observed that stars at the edges of spiral galaxies were moving just as fast as those near the center. According to Newtonian physics, they should have been moving much slower or flying off into space unless some unseen mass was holding them in place. Galaxy Clusters It does not interact with electromagnetic forces, meaning

Massive objects warp the space around them, bending light like a lens. By observing how light from distant galaxies is distorted, astronomers can map the "invisible" mass causing the effect, which consistently points to vast reservoirs of dark matter. 🧪 What Could It Be?

Dark matter is one of the most significant mysteries in modern science, representing a substance that does not emit, absorb, or reflect light, yet exerts a powerful gravitational pull on the universe. While it remains invisible to traditional telescopes, its presence is inferred by its impact on the visible world. The Cosmic Invisible 🔭 Key Evidence The exact identity of dark

It provides the "glue" that keeps galaxies from flying apart.