Blue blobs get scattered into space

[Ineedspace]

https://www.legacysurvey.org//viewer/?ra=72.6835&dec=-16.7320&layer=ls-dr10&zoom=13

[Ed-In-The-Couds]

'jellyfish-cation perhaps

[Joshua]

I wonder what this transient is in the northern part?

[tombickle]

Probably a cosmic ray hit.

[ChrisSnell88]

Undoubtly a cosmic ray hit in the CCD film, so artifact.