thrusters

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  • NASA/JPL-Caltech

    NASA wakes up Voyager's slumbering thrusters 37 years later

    by 
    Mariella Moon
    Mariella Moon
    12.02.2017

    NASA's Voyager 1 has been drifting farther and farther away from our planet for the past 40 years. Now, the agency has ensured that it can maintain contact with the farthest spacecraft from Earth for at least two to three more years by waking up a set of backup thrusters it hasn't used since 1980. Voyager needs to rotate itself every so often so that its antenna points to our planet. It orients itself by firing several 10-millisecond puffs with its thrusters -- problem is, the ones it regularly uses haven't been performing as well after four decades in space.

  • ViaSat-1 moves into fixed orbit, aims its broadband ray gun

    by 
    Sharif Sakr
    Sharif Sakr
    11.04.2011

    To advanced aliens and Europeans, ViaSat-1 is no big deal. To Americans and Canadians, however, it's their ticket to more affordable satellite broadband coverage at speeds of up to 10Mbps, as well better in-flight connectivity. The satellite's plasma thrusters have moved it into geosynchronous orbit and its payload has been switched on, so the initial service is on track to begin by Christmas time, with further services in 2012. Want to know more about the tech involved in such extraterrestrial feats? Then look for the detailed PR after the break.