Crash:System.OutOfMemoryException 1.9.5.3

[warzer]

This happened during a 5+hr play session late game. Save File uploading as Warzer_Lategame_Crash_1953.dwg (complete in 10m)
There are lots of seemingly abandoned independent vessels everywhere. I used the erase tool once to try and get rid of some of them but ended up deleting a planet also so I gave up.

I also noticed that the suggest pirate attack mining base got stuck in a loop and flooded the side panel constantly until I exited the game. Even after clicking accept to the mission.

System.OutOfMemoryException: Insufficient memory to continue the execution of the program.
at Microsoft.Xna.Framework.Helpers.GetExceptionFromResult(UInt32 result)
at Microsoft.Xna.Framework.Graphics.GraphicsHelpers.GetExceptionFromResult(UInt32 result)
at Microsoft.Xna.Framework.Graphics.Texture2D.CreateTexture(GraphicsDevice graphicsDevice, Int32 width, Int32 height, Boolean mipMap, UInt32 usage, _D3DPOOL pool, SurfaceFormat format)
at Microsoft.Xna.Framework.Graphics.Texture2D..ctor(GraphicsDevice graphicsDevice, Int32 width, Int32 height, Boolean mipMap, SurfaceFormat format)
at DistantWorlds.XnaDrawingHelper.FastBitmapToTexture(GraphicsDevice graphics, Bitmap bitmap, Boolean useAlternateBuffer)
at DistantWorlds.XnaDrawingHelper.FastBitmapToTexture(GraphicsDevice graphics, Bitmap bitmap)
at DistantWorlds.Controls.MainView.DrawMainViewXna()
at DistantWorlds.Main.ProgramLoop()