Defeat the Martian Madness event enemies
Kill the Martian Saucer
Open Martian Probes after triggering the Martian Madness event
Collect dropped items from Martian enemies
Farm the event in the Space layer
Use a Water Candle and Battle Potion to increase enemy spawns
Check the event loot for Strange Alien Tech-related drops
Repeatedly run the Martian Madness event until it drops