Weird Fantasy #18

Ron and his dad are talking about Ron's desire to become a space pilot. While they talk, a space ship lands. When a weird alien alights from the ship, Ron's dad kills it with a blaster. After Ron graduates and becomes a pilot, he is tasked with investigating the planet where the ship originated from. He comes to an Earth-like world that rotates in the opposite direction as Earth. This causes time to move backward. While he is doing research he develops sores on his body that begin to mutate him. He returns to Earth and comes out of his ship only to be killed by his dad. He was the alien!