If the cup of cold water is not exposed to air, no condensation will form. The fast-moving molecules of water vapor transfer their energy to the side of the cup which is cooler. This causes the water ...

Earlier this week we broke down the complexities of mixed-phase precipitation forecasting.Within that we briefly touched on a key component to that complexity w ...

As water freezes, the attractions the water molecules have for one another overcome their motion and hold them in fixed positions. Water molecules freeze in a hexagonal pattern and the molecules are ...

Extreme cold and calm conditions on Sayram Lake in northwestern China turned it into a surreal, frozen wonderland. Take a ...

Water vapor indicates that the quasar emits radiation, which keeps the surrounding gas warm. Scientists have also detected other molecules, such as carbon monoxide, hinting at the potential for ...