The Green Ring of Dust

With the help NASA’s Spitzer Space Telescope astronomers can see the glowing emerald nebula, called RCW 120, which like the glowing ring wielded by the superhero Green Lantern. Astronomers believe rings like this are actually sculpted by the powerful light of giant “O” stars, which are the most massive type of star known to exist.

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Crab superflare

Flare in the Crab Nebula

On April 12, 2011, NASA’s Fermi Gamma-ray Space Telescope detected the most powerful in a series of gamma-ray flares occurring in the Crab Nebula. The Crab nebula, which is located 6,500 light-years away in the constellation Taurus, is the crash of an exploded star that emitted light and reached Earth in the year 1054.

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