The doodle is an animated image shows a pixelated version of NASA's ground crew jumping for joy as Juno — forming the second O in "Google" — beams back happy little emoji from around Jupiter.
NASA's Jet Propulsion Laboratory at the California Institute of Technology announced that Juno having travelled 1.7 billion kilometers in a five-year-journey made it safely into orbit around the gigantic mysterious gas planet two doors down from Earth.
Jupiter is a huge ball of gas 11 times wider than Earth and 300 times more massive and the probe's mission is to dive beneath and study Jupiter's intense radiation belts.
The probe will eventually begin to take images of Jupiter and gather data that could potentially help in understanding of the history of the solar system.
"Today's Doodle celebrates this incredible moment of human achievement. Bravo, Juno!," the search engine said. Juno was launched nearly five years ago on a mission to study Jupiter's composition and evolution. It's the first spacecraft to orbit Jupiter since Galileo.
Galileo was deliberately crashed into Jupiter on September 21, 2003, to protect one of its discoveries -- a possible ocean beneath Jupiter's moon Europa.
Juno's five year, 500 million mile journey will culminate in a treasure trove of new pictures and measurements taken by its nine instruments.
"What Juno tells us about Jupiter will detail the planet's magnetic and gravitational fields and interior structure, revealing how it was formed and providing clues to our own planet's humble beginnings," Google explains.