The foreground has a bluish-green burst... #possible-nova?
click "Galaxy Zoo examine" then "SDSS SkyServer" then "navigate" then click on the object. Use object ID for your question or statement.
by Budgieye moderator
Green colour is due to artifact. Zoom in while you are navigating.
see this discussion
Is it a supernova? Check transients with Aladin https://talk.galaxyzoo.org/#/boards/BGZ0000007/discussions/DGZ0002gsd