This is the first time that Earth has a regular orbiting eye-in-the-sky spying on the smallest planet in the solar system, Mercury. NASA’s spacecraft is called Messenger, which was successfully launched into a pinpoint orbit on Thursday night. Messenger was launched in 2004, which has cost NASA $440 million. The scientists believe that Messenger will start to transmit pictures and investigate the mysterious magnetic field and unusual density of Mercury. This is the fifth planet in the solar system that NASA has orbited. “Everybody was whooping and hollering; we are elated,” Messenger’s chief engineer, Eric Finnegan said. “There’s a lot of work left to be done, but we are there.” Mercury is one of the most difficult planets to get to, because of its extreme climate. While it is facing the sun. the temperature can get to 800 degrees. However, when it is not facing the sun, the temperature can get low to 300 degrees below zero. Robert Strom of the University of Arizona was a scientist on the Mariner, a spacecraft that NASA has launched to Mercury in 1970s, and current Messenger missions and he said he thought he wouldn’t get a second peek at the mysterious Mercury. The main purpose of this mission is to look for any living species in the planet and any liquid form water in those craters with frozen ice.