Rainbows in Space: Astronaut Sightings?

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Astronauts may potentially witness rainbow-like phenomena in space under specific conditions, such as when light interacts with tiny frozen droplets ejected from spacecraft. These droplets, which can form from wastewater or other materials, could act similarly to raindrops if illuminated by sunlight from behind. The discussion highlights the possibility of observing these effects in the vacuum of space, particularly in the vicinity of comets or icy bodies. The idea suggests that while traditional rainbows are not possible in space, similar optical effects could occur. This concept opens up intriguing questions about light and water behavior beyond Earth's atmosphere.
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Are there any circumstances, with the proper positioning, where an astronaut may witness rainbows or rainbow-ish phenomena in space? Not on the surface of another planet, mind you, but in open space. Such as in the tail of a comet, or in ice bodies or clouds of ice or other materials?
 
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Ender55, Welcome to Physice Forums.
Just a few days ago there was a thread here in General Physics about water being ejected into space. Manned satellities do eject urine/wastewater into space. The first thing that happens is that tiny droplets of water freeze. I imagine (not positive) that if you had the sun to your back those frozen droplets would act like raindrops...and give you a rainbow in space! See:

https://www.physicsforums.com/showthread.php?t=579338
 

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