Cosmology
What Is Dark Matter, and Why Can’t We See It?
Most of the matter in the universe is invisible. We cannot see it, touch it, or make it in a lab, yet without it galaxies would fly apart. Here is what dark matter is.
24 Sep, 2026
Most of the matter in the universe is invisible. We cannot see it, touch it, or make it in a lab, yet without it galaxies would fly apart. Here is what dark matter is.