(CNN) -- NASA says it has received tones confirming its Juno spacecraft has successfully started orbiting Jupiter, the largest planet in our solar system.
The probe fired its main engine for 35 minutes to slow it enough to be pulled into orbit.
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.
Amanda Barnett at the Jet Propulsion Laboratory, Los Angeles