One of the extreme northern sky's most entertaining deep-sky objects, the Cat's Eye Nebula in Draco (NGC 6543), is a ...

Above the inner core is the outer core, a shell of liquid iron. This layer is cooler but still very hot, perhaps 7,200 to 9,000 degrees Fahrenheit (4,000 to 5,000 degrees Celsius). It too is ...

The presence of two types of hair cells, the inner and outer hair cells ... to finding that light comes out of the eye (which has never been observed). Within five years it was discovered that the ...

“Use soft, hairlike strokes and brush upward, filling in eyebrows from the outer corner of the eye to the very tail ... Angelina Jolie shows above "gives structure and lift to the eyes while ...