While some spacecraft get the chance to go out in a blaze of glory, others are in it for the long haul - Voyager 1 more so than any other.
The backup rocket jets were originally created to help the Voyager 1 spacecraft aim its instruments at planets and moons on its journey through the solar system. Those served to make minute adjustments to the craft's orientation to keep its antenna pointed back at Earth and maintain communications with us as it flies through space. We've learned about Jupiter's moons, Saturn's rings, Neptune's winds - all thanks to Voyager 1. The probe now uses its attitude control thrusters to make tiny corrections - firing for only milliseconds at a time - to rotate it to point its antenna towards Earth.
NASA will switch over to using the backup TCM thrusters in January and hopes they'll help extend the functional life of the spacecraft by two or three years.
The JPL's engineers began to look into alternatives, and found a new way to steer the spacecraft: the probe's trajectory correction maneuver (TCM) thrusters.
So last Tuesday, November 28th, the Voyager team told the far-off probe to fire the TCM thrusters. These are located on the back of the spacecraft and are identical to the thrusters that they've used so far.
The set of four small thrusters came online Wednesday after NASA engineers noticed the spacecraft's attitude control thrusters had been degrading for several years.
All of Voyager's thrusters were developed by Aerojet Rocketdyne. The radio waves traveled for 19 hours and 35 minutes before reaching Voyager 1 13 billion miles away; 19 hours and 35 minutes after that, they got the results of their little experiment. "The mood was one of relief, joy and incredulity after witnessing these well-rested thrusters pick up the baton as if no time had passed at all", said Todd Barber, a NASA propulsion engineer. To make the change, Voyager has to turn on one heater per thruster, which requires power - a limited resource for the aging mission.
Voyager 1 will switch back to its other thrusters once the probe no longer has enough power for the heaters, officials said.
Voyager 2 is also on course to enter interstellar space, likely within the next few years.
Mike will have one final game in which he will represent Penn State University on Saturday, December 30 at 4 p.m. Penn State will compete in the Fiesta Bowl in Glendale, Arizona against Pac-12 opponent Washington University.
Senate leaders both declared the report junk and claimed it vindicates their claim that the tax bill will pay for itself. Trump and other Republicans insist that the corporate tax rate must be reduced from 35 percent to 20 percent.
Federal Bureau of Investigation officials said in a release Saturday that they have evidence to believe Mariah is deceased. Woods' mother, Kristy Woods, told WITN-TV in Greenville that she last saw her daughter at about 11 p.m.
The company did not say whether the new policy of privacy violation warnings will apply to its own software as well. Users will be warned through Google's safe browsing feature about apps that collect personal data without consent.
Last year , Ohio State was involved in a bit of a controversy again when it didn't win its conference but got in. And the Tide's inclusion also means its the first time the playoff has taken two teams from the same conference.
In a recent interview with Variety , Margot opened up about why she enjoyed playing Harley Quinn in Suicide Squad . The only clue to this is that she says she has been working on it for two years. "No, it's a totally seperate one.
The toddler, who was reported missing on November 27, was found dead on Saturday near her Jacksonville , North Carolina home. Daniel Bober, investigator Vincent Hill, syndicated radio talk host Dave Mack, and child advocate lawyer Ashley Willcott.
LaVar Ball Removes LiAngelo from UCLA
According to ESPN , Riley, Hill and LiAngelo Ball were subject to review for possible violations to UCLA's Student Conduct Code. LaVar Ball is taking the reins on his suspended son's basketball future.
Windsor's unemployment rate drops for November
Canada's unemployment rate sank to the 5.9 per cent in November from 6.3 per cent in October, thanks to 79,500 new jobs. Nearly 4,000 new jobs were created in the London area in November, but there was no change in the unemployment rate.
Jimbo Fisher to take Texas A&M job
The Seminoles were ranked third in the AP preseason poll but lost quarterback Deondre Francois in the opener against Alabama . Florida State (5-6) faces Louisiana-Monroe on Saturday and needs a win to be bowl eligible for a 36th consecutive season.
Missing Florida teen spotted in NC found safe in NY
Police asked the public to keep an eye out for the red Mercury Sable, while her mother issued a plea for the teen to return home. The Post-Standard reports police are holding Rian Rodriguez on a charge from Florida known as interference with child custody.
2017 supermoon rises this weekend
Rare sighting of the first and last supermoon of the year will be observed today all over the world including Pakistan. This year's supermoon will be visible Sunday evening and will reach its peak around 2:45 a.m. (CST) Monday morning.