Galileo is one of the most successful outer worlds missions that the Earth has ever launched. This spacecraft has given us some unbelievable discoveries.

It's the fastest spacecraft ever launched. It will get to the Moon in nine hours?it will get to Jupiter in one year and nine months.

This is a great milestone to have accomplished, but it's just one of many milestones before we can open the champagne. Once we are in the prime science orbit, the spacecraft will perform observations of the atmosphere, surface, and subsurface of Mars in unprecedented detail.

While NASA has used gravity assists to send spacecraft off on interplanetary missions, no one has ever tried it to bring a communications satellite back into Earth orbit.

One Galileo in two thousand years is enough

This is a significant breakthrough of China's space technology since the successful spaceflight of manned spacecraft Shenzhou-5.