The mysterious “moon cube” discovered by China’s Yutu-2 rover in early December, and which the China National Space Administration dubbed a “mysterious hut,” has turned out the be nothing of the sort. Business Insider reports that after several weeks of preparations and driving, the rover is close enough to see that the “mysterious hut” is just a ‘rabbit-shaped’ rock. Its sharp-lined geometric appearance on the horizon was a simple trick of perspective, light, and shadow. The rover’s name, Yutu, means “Jade Rabbit” — which is what the rock has now been named too.