"Planetary nebulae were once thought to be simple, round objects with a single dying star at the center," astronomer Roger Wesson of Cardiff University said in a previous statement. "It begs the ...
“The stars that generate planetary nebulae like the Ring and Southern Ring may have produced much of the carbon in the universe,” said Kastner. “We can watch that carbon on its way to being recycled ...
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3D structure of iconic Ring Nebula gives 'a brand new view of an old astronomical friend'O ne of the most photographed objects in the night sky is the Ring Nebula, wreckage of a bygone sun-like star about 2,000 light-years from Earth. Its striking, smoke-ring-like app ...
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