File:Explosion fingers from the BN-KL region in Orion ESA25105184.png

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English: This cutout from the new NASA/ESA/CSA James Webb Space Telescope short-wavelength infrared image of the Orion Nebula shows bright 'fingers' of gas racing away from an explosion that occurred roughly 500 to 1000 years ago in the heart of a dense molecular cloud behind the nebula, perhaps as two young massive stars collided. The dense cloud is called Orion Molecular Cloud 1 and lies to the northwest of the visible Trapezium stars in Orion.
The fingers are predominantly red, indicating emission from molecular hydrogen gas that has been shocked by the immense energy pouring out from the explosion site. Near the tips of some of the fingers, the emission turns green due to hot iron gas and even white in some cases where the gas is at its hottest. Further down, the fingers seem mostly turbulent, but in some places, the flow appears laminar.
The Orion Nebula lies roughly 1300 light-years from Earth in the so-called 'sword' of the constellation of Orion the Hunter, and the image shows a region that is 4 by 2.75 light-years in size.
Image description: The image shows a series of red fingers of shocked molecular gas expanding from the bottom of the image towards the top and top right. Each of the fingers comprises a series of bright arcs of emission like bow waves, expanding behind tips, the latter often appearing green. There are many stars spread across the image with the characteristic eight spikes due to diffraction in the optics of Webb, and there is a foreground haze of wisp blue clouds due to the Orion Nebula, which lies in front of the fingers.
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Date 2 October 2023 (upload date)
Source Explosion fingers from the BN-KL region in Orion
Author NASA ESA CSA / Science leads and image processing: M. McCaughrean S. Pearson
Activity
InfoField
Space Science
Mission
InfoField
JWST Webb

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This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 IGO license.
Attribution: NASA, ESA, CSA / Science leads and image processing: M. McCaughrean, S. Pearson, CC BY-SA IGO 3.0
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