The NASA/ESA Hubble Space Telescope is revisiting an old friend in M16, the Eagle Nebula's Pillars of Creation. 25 years after its first image of this iconic nebula was taken, Hubble is back and has released this clearer, sharper, higher contrast image taken with its widefield camera 3.
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Horsehead Nebula, also known as Barnard 33, is a dark nebula located in the constellation Orion. It sits within the emission nebula IC 434, which is illuminated by the nearby star Sigma Orionis. The distinctive shape of the Horsehead Nebula resembles that of a horse's head, hence its name.
Evidence from the Spitzer Space Telescope suggests that the pillars in M16 may already have been destroyed by a supernova explosion. Due to the distance of the nebula, the light from the supernova would have reached Earth between 1000 and 2000 years ago. The more slowly moving shock wave from the supernova light showing us the destruction will not reach the Earth for another millennium.
