Juno Reaches Jupiter

Juno reaches Jupiter

Braving intense radiation, a NASA spacecraft reached Jupiter on Monday after a five-year voyage to begin exploring the king of the planets.

Ground controllers at the NASA Jet Propulsion Laboratory and Lockheed Martin erupted in applause when the solar-powered Juno spacecraft beamed home news that it was circling Jupiter’s poles.

The arrival at Jupiter was dramatic. As Juno approached its target, it fired its rocket engine to slow itself down and gently slipped into orbit. Because of the communication time lag between Jupiter and Earth, Juno was on autopilot when it executed the tricky move.

“Juno, welcome to Jupiter,” said mission control commentator Jennifer Delavan of Lockheed Martin, which built Juno.

In the coming days, Juno will turn its instruments back on, but the real work won’t begin until late August when the spacecraft swings in closer. Plans called for Juno to swoop within 3,000 miles (5,000 kilometers) of Jupiter’s clouds – closer than previous missions – to map the planet’s gravity and magnetic fields in order to learn about the interior makeup. (AP)

Photos: (from top) NASA/Damian Peach, AP Photo/Ringo H.W. Chiu, NASA/JPL-Caltech, AP Photo/Terry Renna)

See more images of Juno reaches Jupiter on Yahoo News

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