Aranyani

"'A frozen snowball littered with craters, Aranyani is the outermost world in the TRAPPIST-1 system.""Frankly, we don't know much about this ice world, because each time we sent probes to explore its surface they seem to short out upon entering orbit. Physically they remain fine as far as we can tell, but something about the planet seems to be erasing any software included in the probe, rendering them universally nonfunctional.'"