Success! NASA's Juno spacecraft made it to Jupiter

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Juno Spacecraft Reaches Jupiter
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At 8:53 pm Pacific on Independence Day, the Juno spacecraft successfully cartwheeled into orbit around Jupiter, officially beginning the mission to further understand the mysterious gas giant. Cheers and applause were heard here at NASA's Jet Propulsion Laboratory in Pasadena, California, as Juno dutifully transmitted the first "I am safe and have been captured by Jupiter" tone to mission control.

The Juno teams are here from Lockheed Martin, Southwest Research Institute, and of course, JPL. More than 13 years have passed between the mission's concept phase and the arrival of Jupiter. Mission control fell silent as they awaited each confirmation to trickle in from Juno, ensuring that all that hard work was worth it.

While none of us worked on or had anything to do with this mission, the entire newsroom and auditorium also held their breath, sighing with anxiety awaiting word from the spacecraft. Would Juno make it? Could it really survive Jupiter's blasts of radiation? The signal just needed to come in!

So much work goes into a mission like this from the conception to design, engineering, and launch that when it jumps over the initial hurdle it's a sweet victory for everyone involved. As the countdown clock ticked on, the people in mission control all stood up in anticipation of the big moment. Once they were all on their feet, it was time. Cheers and screams! "We did it!"

See more of Jupiter:

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Jupiter Red Spot
This undated composite handout image provided by NASA, taken by the Hubble Space Telescope, shows the planet Jupiter and the The Great Red Spot in 2014, left; in 1995, top right; 2009, center right; and 2014, bottom right. Jupiter’s signature Great Red Spot is on a cosmic diet, shrinking rapidly before our eyes. Astronomers using the Hubble Space Telescope calculate that the spot, a giant long-lasting storm, is narrowing by about 580 miles a year, much faster than before. In the late 1800s the red spot was an elongated oval 25,500 miles wide. Now it’s a svelte circle that’s 10,250 miles across. (AP Photo/NASA)
This image provided by NASA shows the Great Red Spot and Red Spot Jr. — in the turbulent Jovian atmosphere. This third red spot, which is a fraction of the size of the two other features, lies to the west of the Great Red Spot in the same latitude band of clouds. The visible-light images were taken on May 9 and 10 with Hubble's Wide Field and Planetary Camera 2. The new red spot was previously a white oval-shaped storm. The change to a red color indicates its swirling storm clouds are rising to heights like the clouds of the Great Red Spot. One possible explanation is that the red storm is so powerful it dredges material from deep beneath Jupiter's cloud tops and lifts it to higher altitudes where solar ultraviolet radiation — via some unknown chemical reaction — produces the familiar brick color. (AP Photo/NASA)
This image provided by NASA's Hubble Space Telescope Thursday May 4, 2006 shows a second red spot, lower left, emerging on Jupiter. For the first time in history, astronomers have witnessed the birth of a new red spot on the giant planet, which is located half a billion miles away. The storm is roughly one-half the diameter of its bigger and legendary cousin, the Great Red Spot. Researchers suggest that the new spot may be related to a possible major climate change in Jupiter's atmosphere. This image was taken with Hubble's Advanced Camera for Surveys on April 25, 2006.
This dramatic view of Jupiter's Great Red Spot and its surroundings was obtained by Voyager 1 on Feb. 25, 1979. (Photo by: Universal History Archive/UIG via Getty Images)
Jupiter's trademark Great Red Spot — a swirling storm feature larger than Earth — is shrinking. This downsizing, which is changing the shape of the spot from an oval into a circle, has been known about since the 1930s, but now these striking new NASA/ESA Hubble Space Telescope images capture the spot at a smaller size than ever before.
This dramatic view of Jupiter's Great Red Spot and its surroundings was obtained by Voyager 1 on Feb. 25, 1979. (Photo by: Universal History Archive/UIG via Getty Images)
UNITED STATES - MAY 13: This photograph taken by Voyager 1 shows a close up of the Great Red Spot on Jupiter, a storm that has been raging in the gas giant�s atmosphere for at least three hundred years. The white spot shows another cloud system that is believed to have formed around 1940. Jupiter�s atmosphere is made up of 90 % hydrogen and almost 10 % helium, together with traces of other gases, including methane and ammonia. Immensely strong winds occur, and the storm clouds exhibit colours which are thought to be due to chemical reactions in the atmosphere. The two Voyager spacecraft were launched in 1977 to explore the planets in the outer solar system. Voyager 1 flew past Jupiter at a distance of 278,000 kilometres in March 1979 before flying on to Saturn. (Photo by SSPL/Getty Images)
Jupiter fr. equator to southern polar latitudes close to Great Red Spot, as depicted by Voyager spacecraft. (Photo by Time Life Pictures/NASA/Time Life Pictures/Getty Images)
circa 1973: An artist's impression of a Pioneer probe passing the Great Red Spot on Jupiter during its mission to photograph the planet's surface and send back data. (Photo by NASA/Space Frontiers/Getty Images)
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Juno was sent into unknown territory tonight, speeding on purpose into one of the most dangerous environments in our solar system. Getting Juno into this polar orbit was tricky not only because the spacecraft was flying away from Earth at a rapid 165,000 miles per hour, but because it had to fly through Jupiter's harsh, radiation-blasted magnetic field. Everything we just experienced here at JPL actually took place 48 minutes prior, due to the light travel time from Jupiter to Earth.

News outlets from around the world came to JPL for this momentous event, on the day when the USA celebrates its independence with barbecues en masse and family celebrations. It's a good day to remember our country's space agency, working tirelessly in the pursuit of knowledge.

Juno now embarks on a two year mission to find out whether or not Jupiter has a solid core and to detect how much water is present there. The data sent back from Juno will not only tell us more about how the giant planet was created, but it will ultimately give us more answers about how our own planet formed.

Its almost 10pm here on the west coast and the second news briefing of the day is about to begin. There's applause and smiles as the science team enter the Von Karman Auditorium, they all look very relieved knowing that all of their hard work has paid off. Now they get to do the fun part: science!

Tomorrow the spacecraft is expected to beam back some low-resolution imagery from Jupiter, with high-res closeups arriving in late August, after the spacecraft's orbit swings it in close again. The spacecraft is already closer than we've ever been to Jupiter before, and the mission will send back images and data that will reveal Jupiter as we've never seen it before.

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