Since the Mars Perseverance thing has been in the news lately, I thought this was relevant. There’ve been a couple articles talking about how the little mini-helicopter on the Perseverance rover (named Ingenuity) runs Linux. That’s super cool… but more relevant to our interests here, some folks noticed that NASA’s 3D Resources page has Ingenuity as a .blend file. You can pull the ZIP from there or follow a link to the model on their GitHub page.
It’s just nice to know that Blender gets used in all kinds of interesting places.