Cassini-Huygens is a flagship-class that was created by NASA as a robotic space craft that was sent to the Saturn system. it has studied the planet and its many natural satellites since arriving there in 2004, also observing Jupiter, the Heliosphere, and the testing of the theory of relativity. It launched on October 15, 1997, and after nearly two decades of gestation, it includes Saturn orbiter and an atmospheric probe/lander from the moon Titan in 2005. Cassini-Huygens is the fourth space probe to visit Saturn and the first to enter into orbit. This mission will last until the year of 2017. The purpose of this mission was to explore Saturn's atmosphere, and the satellite Titan (moon)
Images taken by Cassini
Galileo Project to Jupiter
The Galileo Project to Jupiter played a big roll in the NASA Space Program. This project is when NASA sent a space craft named Galileo out to explore the unknown planet of Jupiter. It first started on October 18, 1989. It ended on September 21, 2003. Scientists received information including there could be an ocean beneath the icy crust of the moon Europa, Jupiter's moons might even have some active volcanoes. Galileo was an unmanned spacecraft. It crashed into Jupiter on September 21, 2003. The spacecraft was deliberately destroyed to protect one of its own discoveries - a possible ocean beneath the icy crust of the moon Europa. Galileo changed the way we look at our solar system. The spacecraft was the first to fly past an asteroid and the first to discover a moon of an asteroid. It provided the only direct observations of a comet colliding with a planet. Galileo was the first to measure Jupiter's atmosphere with a descent probe and the first to conduct long-term observations of the Jovian system from orbit. It found evidence of subsurface saltwater on Europa, Ganymede and Callisto.