“There aren’t any.” Lucky looked down, shoulders slumping. “Princess, I’m sorry. There’s no air out there.” And she didn’t know how that was possible. Any body with mass ought to attract its atmosphere evenly, right? But the Alicorn didn’t know that, so she didn’t need to know why this didn’t make sense. “With no air, this ruin could be older than it looks. It could be thousands of years old. Longer.” That was even more disturbing than the air. She needed to remember to bring a sample of irradiated material with her. That should allow them to determine what was producing the radiation even now, figure out its half-life, date whatever had happened here.