Tags archives: planet

 

 

 

 

10 worst polluting countries

 
 

They’re responsible for emitting more carbon dioxide than the rest of the world combined, these are the 10 worst polluting countries.

 

NGC 5189: An unusually complex planetary Nebula

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Image Credit: NASA, ESA, Hubble Heritage Team (STScI/AURA)

Image Credit: NASA, ESA, Hubble Heritage Team (STScI/AURA)

Why is this nebula so complex? When a star like our Sun is dying, it will cast off its outer layers, usually into a simple overall shape. Sometimes this shape is a sphere, sometimes a double lobe, and sometimes a ring or a helix. In the case of planetary nebula NGC 5189, however, no such simple structure has emerged.

 

 

 

Saturn at Night

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Splendors seldom seen are revealed in this glorious picture from Saturn’s shadow. Imaged by Cassini on October 17, 2012 during its 174th orbit, the ringed planet’s night side is viewed from a perspective 19 degrees below the ring plane at a distance of about 800,000 kilometers with the Sun almost directly behind the planet. A 60 frame mosaic, images made with infrared, red, and violet filters were combined to create an enhanced, false-color view.

 

Humanity explores the Solar System

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What spacecraft is humanity currently using to explore our Solar System? Presently, every inner planet has at least one robotic explorer, while several others are monitoring our Sun, some aremapping Earth’s Moon, a few are chasing asteroids and comets, one is orbiting Saturn, and several are even heading out into deep space.