Voyager near Solar System's edge

Discussion in 'User Submitted News' started by soulx, Dec 15, 2010.

Dec 15, 2010

Voyager near Solar System's edge by soulx at 1:25 AM (1,671 Views / 0 Likes) 18 replies

  1. soulx
    OP

    Member soulx GBAtemp Legend

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    [​IMG]


    Voyager 1, the most distant spacecraft from Earth, has reached a new milestone in its quest to leave the Solar System.

    Now 17.4bn km (10.8bn miles) from home, the veteran probe has detected a distinct change in the flow of particles that surround it.

    These particles, which emanate from the Sun, are no longer travelling outwards but are moving sideways.

    It means Voyager must be very close to making the jump to interstellar space - the space between the stars.

    Edward Stone, the Voyager project scientist, lauded the explorer and the fascinating science it continues to return 33 years after launch.

    "When Voyager was launched, the space age itself was only 20 years old, so there was no basis to know that spacecraft could last so long," he told BBC News.

    "We had no idea how far we would have to travel to get outside the Solar System. We now know that in roughly five years, we should be outside for the first time."

    Dr Stone was speaking here at the American Geophysical Union (AGU) Fall Meeting, the largest gathering of Earth scientists in the world.
    Particle bubble

    Voyager 1 was launched on 5 September 1977, and its sister spacecraft, Voyager 2, on 20 August 1977.

    The Nasa probes' initial goal was to survey the outer planets Jupiter, Saturn, Uranus and Neptune, a task completed in 1989.

    They were then despatched towards deep space, in the general direction of the centre of our Milky Way Galaxy.

    Sustained by their radioactive power packs, the probes' instruments continue to function well and return data to Earth, although the vast distance between them and Earth means a radio message now has a travel time of about 16 hours.

    The newly reported observation comes from Voyager 1's Low-Energy Charged Particle Instrument, which has been monitoring the velocity of the solar wind.

    This stream of charged particles forms a bubble around our Solar System known as the heliosphere. The wind travels at "supersonic" speed until it crosses a shockwave called the termination shock.

    At this point, the wind then slows dramatically and heats up in a region termed the heliosheath. Voyager has determined the velocity of the wind at its location has now slowed to zero.
    Racing onwards

    "We have gotten to the point where the wind from the Sun, which until now has always had an outward motion, is no longer moving outward; it is only moving sideways so that it can end up going down the tail of the heliosphere, which is a comet-shaped-like object," said Dr Stone, who is based at the California Institute of Technology in Pasadena, California.

    This phenomenon is a consequence of the wind pushing up against the matter coming from other stars. The boundary between the two is the "official" edge of the Solar System - the heliopause. Once Voyager crosses over, it will be in interstellar space.

    First hints that Voyager had encountered something new came in June. Several months of further data were required to confirm the observation.

    "When I realized that we were getting solid zeroes, I was amazed," said Rob Decker, a Voyager Low-Energy Charged Particle Instrument co-investigator from the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland.

    "Here was Voyager, a spacecraft that has been a workhorse for 33 years, showing us something completely new again."

    Voyager 1 is racing on towards the heliopause at 17km/s. Dr Stone expects the cross-over to occur within the next few years.

    Although launched first, Voyager 2 was put on a slower path and is currently just over 14bn km from Earth.[/p]

    [​IMG] Source

    Exciting information. Perhaps some extra-terrestrials will encounter it.
     
  2. Stevetry

    Banned Stevetry Most perverted person in GBATEMP

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    Starship voyager XD
     
  3. BloodyFlame

    Member BloodyFlame GBAtemp Fan

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    This is some very exciting news! Maybe we'll find out some things concerning extra-terrestrial life.
     
  4. naughtynazgul

    Member naughtynazgul GBAtemp Regular

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    lol Interstellar traffic collision? =P
     
  5. 431unknown

    Member 431unknown Greatness Awaits

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    Nice to see its still working and transmiting data back.
     
  6. Jamstruth

    Member Jamstruth Secondary Feline Anthropomorph

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    Hopefully it won't run into any Borg or we're in the shitter.
     
  7. Bladexdsl

    Member Bladexdsl ZOMG my posts...it's over 9000!!!

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    the guys who hit it: that damn thing scratched da paint on me ufo find out who owns it we going there and gonna kik their asses!
     
  8. Narayan

    Member Narayan desu~

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    i wish i'm still alive until the day us normal humans can travel in space.
     
  9. ProtoKun7

    Global Moderator ProtoKun7 GBAtemp Time Lord Regenerations: 3

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    Or V'Ger, even.

    (For anyone else that watched Star Trek: The Motion Picture)
     
  10. Fear Zoa

    Member Fear Zoa This... This is the world we live in

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    Perhaps "In a galaxy far far away " isn't so far away anymore ..........

    Find the death star! and blow it up of course!
     
  11. VashTS

    Member VashTS Beat it, son

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    thats voyagers real mission. stop darth vader.

    its great to see that they built a space probe in 1977 that has been traveling this long and still working. now if i could buy a tv that lasted more than 1 year without crapping out. srsly i know two people who had big screen lcd's that died within 1 year.
     
  12. CannonFoddr

    Member CannonFoddr Regular GBATemp Lurker

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    Yep - I did (too many SFX IMHO) - I thought the same thing(s) when I saw the post title

    [​IMG]

    Still we've got another 2000-odd year to wait before it returns - nothing to worry about
     
  13. scrtmstr

    Member scrtmstr GBAtemp Advanced Fan

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    Those things were build to survive the apocolypes, as was everything else back then. My grandma has got a 1980's tv, which still works. All the new crap is not build to last forever, but to last as long as the warranty, so that consumers will buy a new product.
     
  14. shlong

    Member shlong in memoriam of gravitas

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    This is pretty awesome [​IMG]
    [​IMG]
     
  15. Shinigami357

    Member Shinigami357 Current "give a fuck" level: Honey Badger

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    I wanna see Pluto (134340 Pluto) spank it to debris for revenge. Damn idiots.


    On Topic:

    Well, finally the slow homo sapiens have something that might eventually go out further than actual beings ever have. Shame on you slow mortals. LOL
     
  16. Langin

    Member Langin GBAtemp's kpop addict

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    The death star will survive, the empire will destroy us all. [​IMG]
     
  17. Kkolko

    Member Kkolko GBAtemp Regular

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    This is transmitting from 17.4bn Km away and my wireless stops at 150 meters? I call shenanigans! [​IMG]

    Great to see we're still discovering new things [​IMG]
     
  18. mkoo

    Member mkoo GBAtemp Fan

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    Still long way to Ocampa
     
  19. toguro_max

    Member toguro_max GBAtemp Fan

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    This.

    It's weird to think a 30+ years old probe (that's quite far from here), using a technology from 30+ years ago is still working and sending info back "home".

    Who can assure this data is not fake? That it was not sent by aliens, trying to fool us all?

    [/conspiracy status=off fear=on xfiles=finished]
     

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