This density experiment is an excellent representation of how denser fluids fall to the bottom of a cup, while lighter fluids float to the top of a cup. In this experiment, a type of syrup, water, and ...

Conditions in the vast universe can be quite extreme: Violent collisions scar the surfaces of planets. Nuclear reactions in bright stars generate tremendous amounts of energy. Gigantic explosions ...

China’s latest advance with its so‑called artificial sun has pushed fusion plasma into a regime many physicists long treated as off limits, smashing through a density ceiling that had constrained ...