Professor Leonid Sokolov of St. Petersburg State University says casually of Asteroid Apophis, "Its likely collision with Earth may occur on April 13, 2036." His nonchalance stems from the belief that scientists by that time will have found ways to prevent the collision. N.A.S.A. scientists are equally insouciant to our potential dinosaur demolition. In 2009, N.A.S.A. scientists disclaimed the chances of Apophis hitting earth in 2036, and adhere to their position still today. Donald Yeomans, head of NASA’s Near-Earth object Program Office said that "technically" the Russian scientists are correct.