I'd like you all to roll for awareness about... now. Whoever passes a difficult (-10) one, read the spoiler below.
You can perceive some rare skittering noises at the treshold of hearing. Unfortunately, it's hard to tell where exactly do they come from.
Also, Lucky wanted to know if any signs of life were present. I doubt anything would live in such environmental conditions. And if it was, probably it'd be bizzare enough for you to see it right away and for me to mention it without you asking.