Juno's epic Jupiter mission voyage in numbers

The Juno space probe has arrived in orbit around Jupiter in a historic moment for astronomy, hailed as the "hardest thing Nasa's ever done".

The praise from the mission's chief scientist came as the spacecraft completed a five-year, 1.4 billion-mile voyage by firing a rocket to slow its 150,000 mph approach to the gas giant at around 4.54am, sparking cheers and applause at mission control at Nasa's Jet Propulsion Laboratory at the California Institute of Technology.

Juno will map Jupiter's gravity and magnetic fields and track how much water is in the atmosphere, while examining Jupiter's swirling clouds, polar regions and shimmering southern and northern lights.

Here are some of the headline figures from the epic space voyage:


The total distance in miles travelled by Juno from launch to arrival before its 1.4bn mile journey.


The cost (equivalent to £890 million) of the NASA mission.

The probe's three wings make Juno the most distant solar-powered spacecraft. Credit: RTV

The mph of the spacecraft as it approached Jupiter before a fired rocket slowed it down.

48m 19s

The time it took for radio signals from Jupiter to reach Earth.


The number of months the mission will last before Juno plunges into Jupiter's atmosphere.

Juno's instruments and camera could provide insights into the history of the solar system. Credit: RTV

Different instruments Juno will use to explore Jupiter from its interior to its atmosphere.


The trio of solar wings that extend from Juno, making it the most distant solar-powered spacecraft.