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1 vote
1 answer
102 views

Can you identify the source of this image of the Pacman Nebula (NGC 281)?

Months ago I downloaded this glorious image of the Pacman Nebula (NGC 281) in Cassiopeia. I have not been able to identify the source of the image (e.g., Hubble, James Webb Space Telescope, etc.) and ...
WPWPWP's user avatar
  • 205
2 votes
1 answer
81 views

Is it possible to take the same images in HST palette as the optic telescope but with radio telescope?

Is it possible to detect signal from SII, H$\alpha$, OIII using radio telescope and make the similar images as optic telescope? If no, can we use the different elements to take signal? What minimal ...
Robotex's user avatar
  • 266
15 votes
1 answer
1k views

What are the large round dark "holes" in this NASA Hubble image of the Crab Nebula?

I came across this image of the Crab Nebula taken from NASA Hubble telescope. What are the large round "holes" and how are they formed?
Martin's user avatar
  • 193
4 votes
1 answer
325 views

What are the dark spots in this Hubble image of the Crab Nebula?

I recently ran into this NASA Hubble image of the Crab Nebula in this article talking about its core. What I am interested to know though is: what are these round dark spots appearing in the image (...
Martin's user avatar
  • 193