**Astronomy Picture of the Day**

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Kind-1 (TextNote)

2026-03-10T04:06:35Z

Astronomy Picture of the Day

10 March 2026

The Cranium Nebula from the Webb Telescope

https://apod.nasa.gov/apod/image/2603/cranium_WebbMiri2_960.jpg

Image Credit: NASA, ESA, CSA, STScI, J. DePasquale, STScI

Explanation:
What's going on inside the head of this nebula?

Dubbed the Exposed Cranium Nebula for its similarity to the human brain, what created the nebula remains a mystery.

One thought is that the Cranium Nebula, also known as PMR 1, is a planetary nebula surrounding a white dwarf star.

In this mode, the outer atmosphere was expelled when the original Sun-like star ran out of central nuclear fuel and contracted.

A competing thought is that the central star is much more massive, possibly a Wolf-Rayet star, that is ejecting gas and dust via turbulent stellar winds.

Adding to the intrigue is the dark vertical central division and the thin outer gaseous shell.

The featured image was taken by the Webb Space Telescope in mid- infrared light, while a second image, included as a rollover, is in near-infrared.

Future observations may reveal if this brainy system will quietly just fade from view or, many years from now, suddenly erupt in a powerful supernova.

#APOD #CraniumNebula #WebbTelescope #jwst #DeepSpace #InterstellarGas

https://apod.nasa.gov/apod/ap260309.html

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  "content": "**Astronomy Picture of the Day**\n\n10 March 2026\n\n**The Cranium Nebula from the Webb Telescope**\n\nhttps://apod.nasa.gov/apod/image/2603/cranium_WebbMiri2_960.jpg\n\nImage Credit: NASA, ESA, CSA, STScI, J. DePasquale, STScI\n\nExplanation:  \nWhat's going on inside the head of this nebula? \n\nDubbed the Exposed \nCranium Nebula for its similarity to the human brain, \nwhat created the nebula remains a mystery. \n\nOne thought is that the Cranium Nebula, also known as PMR 1, is a \nplanetary nebula surrounding a \nwhite dwarf star.\n\nIn this mode, the outer atmosphere was expelled when the original \nSun-like star ran out of \ncentral nuclear fuel and contracted.\n\nA competing thought is that the central star is much more massive, \npossibly a \nWolf-Rayet star, \nthat is ejecting gas and \ndust via turbulent \nstellar winds. \n\nAdding to the \nintrigue is the dark vertical central division \nand the thin outer gaseous shell. \n\nThe featured image was taken by the \nWebb Space Telescope in \nmid-\ninfrared light, while a second image, included as a rollover, \nis in near-infrared. \n\nFuture observations may reveal if this brainy system \nwill quietly just fade from view or, many years from now, \nsuddenly erupt in a powerful \nsupernova.\n\n#APOD #CraniumNebula #WebbTelescope #jwst #DeepSpace #InterstellarGas\n\nhttps://apod.nasa.gov/apod/ap260309.html\n",
  "sig": "9ae49bf3d13a6f3149d7720f17350fdf0f411b3b1aef549b4114a786a66e94cfa1880edcd1cfba940c74a0460b7347bbbfba72c9511027d594a7d7ca91419340"
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