NASA Spacecraft Barrels Toward Jupiter for July 4 Meetup | NBC Southern California
National & International News
The day’s top national and international news

NASA Spacecraft Barrels Toward Jupiter for July 4 Meetup

The Juno spacecraft will fire its main engine to slow down and slip into orbit around the biggest planet in the solar system



    This artist's rendering shows NASA's Juno spacecraft making one of its close passes over Jupiter.

    A NASA spacecraft is bound for a Fourth of July encounter with Jupiter in the latest quest to study how the largest planet in the solar system formed and evolved.

    As Juno approaches Jupiter's harsh radiation environment, it will fire its main engine to slow down and then slip into orbit around the planet.

    "It's a one-shot deal," mission chief scientist Scott Bolton from the Southwest Research Institute in San Antonio, Texas, said Thursday. "Everything is riding on it."

    If all goes as planned, Juno will spend nearly a year circling Jupiter's poles and peering through clouds to scrutinize the planet's southern and northern lights, which are considered the strongest in the solar system.

    Airlines Reading, Responding to Social Media Rants

    [NATL-DFW] Airlines Reading, Responding to Social Media Rants
    A new study says airlines are reading posts made by customers complaining over delayed or canceled flights and poor service, and are responding to those messages. Dallas-based Southwest Airlines has a team tracking Twitter, Facebook and other online sites 24 hours a day. When a customer vents about a problem, a representative reaches out to them. "The approach is really how can we help, wait a minute we hate to hear that.... so what is going on, give us some information and let's see what we can do to straighten this out," said Lisa Goode, with Southwest Airlines. Social media teams help airlines by rebooking customers or by helping keep them more calm by relaying information when problems crop up. (Published 4 hours ago)

    "Jupiter is a planet on steroids. Everything about it is extreme," Bolton said.

    Since the 1970s, spacecraft have circled or zipped past Jupiter, sending back stunning views of the planet's signature Great Red Spot and its numerous moons. The most extensive study came from the Galileo spacecraft, which dropped a probe on the surface. Galileo explored Jupiter and its moons for 14 years.

    Unlike Earth, which is a rocky planet, Jupiter is a gas giant made up mostly of hydrogen and helium. Despite previous investigations, scientists still don't know whether Jupiter has a solid core or how much oxygen and water the planet has — information that could help unravel how Earth and the solar system came to be.

    The trip to Jupiter took nearly five years, allowing Juno to loop around the inner solar system and use Earth as a gravitational slingshot to propel itself into deep space.

    Previous missions to Jupiter — the fifth planet from the sun — have relied on nuclear power sources because of its distance from the sun. Juno is running on solar power, with panels designed to face the sun during most of the mission.

    After Juno completes its mission in 2018, it will plunge into Jupiter and burn up. Scientists planned this finale to eliminate the possibility it could smack into Europa, one of Jupiter's watery moons.