This post contains spoilers for the "Stargate" franchise. In Roland Emmerich's "Stargate," we see an energy vortex created by the titular device rush out of the gate like a pressurized flood. On its ...

An optical illusion is a visual phenomenon where our perception of an image differs from objective reality. This image is perceived as a visual impression of a swirling tunnel or vortex effect. These ...

The last time Texas experienced a “polar vortex effect” was last winter, when a cold front brought frigid temperatures and wind chills down to -15 degrees. David Montesino dmontesino@star-telegram.com ...

The polar vortex, a weather feature that contributed to the Great Texas Freeze, is currently forming in the stratosphere over the North Pole and is expected to continue to strengthen rapidly as we ...