INSUBCONTINENT EXCLUSIVE:
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wonder.In the 1800s, astronomers were mystified by the discovery of stars that displayed highly unusual emission lines
It was only after 1868, when scientists discovered the element helium, that astronomers were able to explain the broad emission bands due to
the presence of helium in these stars.Over time, these stars became known as Wolf-Rayet stars (Charles Wolf was a French astronomer, and
helium was first detected by the French scientist Georges Rayet and others), and astronomers came to understand that they were the central
stars within planetary nebulae, and continually ejecting gas at high velocity.This gives Wolf-Rayet stars a distinctive appearance in the
shell of ionized oxygen gas visible in the middle of the image," McGrew said
"This is a deep sky object that has been imaged countless times, and I get why
Ever since I saw it for the first time, it's been high on my list
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