Santiago's still going over his readings from last night, but even without them, it seems clear that the obelisk was behaving oddly. It was pulsing wildly and the ground beneath it received regular tremors, as if the whole station was on the verge of tearing itself apart. If this obelisk goes off, it could mean armageddon for every living thing here.
Despite this, Santiago is insisting on analyzing his readings. The scientist in me is proud of his dedication to hard evidence, but the part of me that would rather not be obliterated by a mysterious, high tech space station really wishes he would hurry the hell up.