Scientists have noticed that Jupiter's Great Red Spot has been getting smaller over time. New evidence says the storm is getting taller - and more orange - as it shrinks.
Researchers fired laser beams onto a plastic foil to mimic some of the conditions comets encounter as they travel through our solar system and to solve a long-standing mystery.
View larger. | It looks like ordinary crepuscular rays are coming from the reflected sunlight at the base of this mountain. But that's not what's happening in this rare photo by Dennis Schoenfelder.