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Juno spacecraft has entered the Jupiter's magnetosphere, where the movement of particles in space is controlled by what's going on inside the planet.

Today (6/24), at exactly 9:57 and 48 seconds a.m. PDT, NASA's Juno spacecraft was 5.5 million miles (8.9 million kilometers) from its July 4th appointment with Jupiter. 

Well below the Jovian cloud tops is a layer of hydrogen under such incredible pressure it acts as an electrical conductor. Scientists believe that the combination of this metallic hydrogen along with Jupiter's fast rotation generates a powerful magnetic field that surrounds the planet with electrons, protons and ions traveling at nearly the speed of light. 

NASA will host a media briefing at 11 a.m. PDT (2 p.m. EDT) on Thursday, June 16, to discuss the agency’s Juno spacecraft and its July 4th arrival at Jupiter.

Jupiter is now the most dominant gravitational force in the Juno spacecraft’s universe.

Social media users may apply now for access to a two-day media event at JPL on July 3-4, 2016, culminating in the arrival of NASA's Juno spacecraft in orbit around Jupiter.

As of May 6, 2016, Juno is approximately 450 million miles (724 million kilometers) from Earth. The one-way radio signal travel time between Earth and Juno is currently about 40 minutes.

As of March 25, 2016, Juno is approximately 410 million miles (659 million kilometers) from Earth. The one-way radio signal travel time between Earth and Juno is currently about 37 minutes. 

As of Feb. 19, 2016, Juno is approximately 413 million miles (665 million kilometers) from Earth. The one-way radio signal travel time between Earth and Juno is currently about 37 minutes.

NASA’s Juno spacecraft performs maneuver. Jupiter is five months away.