"For the first time we can see the chemical cake while it's rising in the oven, instead of just the starting ingredients of ...

"In 2013, the entire interior of the hexagon appeared blue ... descending air clears the sky of clouds and precipitation. This may be the case with Saturn's vortexes, too, NASA said.

Saturn's hexagon is a giant cloud system on Saturn's north pole, and it contains a central vortex. The sharp edges scientists saw in these latest images suggests that the cloud system and its ...