Students will apply tests, based on physical properties of matter samples, to determine whether a heterogeneous mixture is a suspension or a colloid. Part of science is learning how to ask questions ...

6, 2025 — A team of international researchers has developed an innovative approach to uncover the secrets of dark matter in the cosmos ... the biggest mysteries in science -- dark energy ...

where the distortions of background galaxies are far subtler. By analyzing billions of galaxies, scientists hope to trace the large-scale distribution of dark matter and measure the influence of dark ...

Eventually, as the universe expanded and cooled, these interactions slowed and then stopped, leading the dark matter to "freeze out" and remain silent in the background. While there are many ...