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It looks like you're using an Ad Blocker. Please white-list or disable AboveTopSecret.com in your ad-blocking tool. Thank you. Some features of ATS will be disabled while you continue to use an ad-blocker. NASA's Voyager 1 spacecraft has discovered a new layer of the solar system that scientists hadn't known was there, researchers announced today (Dec. 3). Voyager 1 and its sister probe Voyager 2 have been traveling through space since 1977, and are close to becoming the first manmade objects to leave the solar system. Scientists haven't been sure exactly when that exit would occur, and now say the spacecraft are likely in the outermost region of the solar system, which is defined by the extent of the heliosphere, the large bubble of charged particles the sun puffs out around itself. Voyager 1, in particular, has entered a new region of the heliosphere that scientists are calling a "magnetic highway," which allows charged particles from inside the heliosphere to flow outward, and particles from the galaxy outside to come in. "We do believe this may be the very last layer between us and interstellar space," Edward Stone, Voyager project scientist based at the California Institute of Technology, in Pasadena, Calif., said during a teleconference with reporters. "This region was not anticipated, was not predicted." Data from the spacecraft revealed that the magnetic field became stronger every time Voyager entered the highway region, according to NASA. Before Voyager 1 reached the magnetic highway, charged particles bounced around in all directions, as if trapped on local roads inside the heliosphere, as shown in the first scene. The pink particles are the lower-energy charged particles that originate from inside the heliosphere, which is the bubble of charged ions surrounding our sun. The second scene shows Voyager entering the highway region, where inside (pink) particles zip away and particles from interstellar space (blue) stream in. These interstellar particles are called cosmic ray particles and have more energy than the inside particles. In the third scene, further travel through the magnetic highway means that all of the inside particles are leaving and the population of outside particles is much higher. The cosmic ray particles rapidly fill this new region to the same level as outside and speed in all directions. The fourth scene shows the point at which all of the inside particles have zipped out, leaving an area dominated by cosmic rays from outside. Originally posted by theabsolutetruth ...it proves that there are things science is yet to discover of importance that could give way to new physics and understanding of the nature of the universe. Originally posted by theabsolutetruth reply to post by MDDoxs It is very exciting, there are so many new things being discovered and this is pretty big, it wasn't predicted and it proves that there are things science is yet to discover of importance that could give way to new physics and understanding of the nature of the universe. Originally posted by VoidHawk Originally posted by theabsolutetruth ...it proves that there are things science is yet to discover of importance that could give way to new physics and understanding of the nature of the universe. Thats what I was going to say I'm absolutely fascinated by the voyagers, how long are they expected to keep transmitting data? "We will have enough power for all the instruments until 2020; at that point we will have to turn off our first instrument," Stone said. By 2025 the last instrument will have to be turned off. Originally posted by theabsolutetruth It is very exciting, there are so many new things being discovered and this is pretty big, it wasn't predicted and it proves that there are things science is yet to discover of importance that could give way to new physics and understanding of the nature of the universe.
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NASA-ina sonda Voyager 1 danas je proslavila svoj 35. rođendan u svemiru i poslala podatke o drugoj promjeni u svojem beskrajnom okolišu, baš kao što su znanstvenici predvidjeli da će se dogoditi prije njezina ulaska u međuzvjezdani prostor Od lipnja Voyager 1 bilježi nagli porast u količinama kozmičkih zraka, što je jedan od tri kriterija prema kojima se može utvrditi da je napustio heliosferu, vanjski omotač od nabijenih čestica Sunca. Sada je također registrirao smanjenje količina čestica niže energije koje izlaze iz Sunčevog sustava, što je drugi kriterij. Treći i konačni, koji se NASA-ini znanstvenici nadaju uskoro vidjeti, trebao bi biti nagla promjena magnetskih polja iz smjera istok-zapad u pravcu sjever-jug. Znanstvenici trenutno istražuju najnovije pristigle podatke kako bi utvrdili je li moguće da se to već dogodilo. Zastarjela tehnologija, ali još uvijek živa Letjelica se nakon dugog putovanja nalazi na samom rubu Sunčeva sustava i uskoro će ga zauvijek napustiti. Sve informacije koje šalje na Zemlju stižu s odgodom od čak 17 sati, koliko svjetlosti treba da prijeđe tu razdaljinu. Sonda je opremljena za današnje pojmove vrlo primitivnom tehnologijom – računalom s osam traka koje ima 68 kilobajta memorije, što je ukupno oko 100.000 puta manje od iPada. No začudo još uvijek funkcionira i najudaljenije je djelo ljudskih ruku u svemiru. Voyager 1 i Voyager 2 lansirani su 1997. godine. Voyager 2 je otputovao prema Uranu i Neptunu i jedina je letjelica koja je posjetila te vanjske planete. Voyager 1 je iskoristio gravitacijsku praćku Saturna i katapultirao se prema rubu Sunčeva sustava. Blizanci, svaki veličine automobila, imaju dovoljno nuklearnog goriva za rad do 2020. godine. Opremljeni su s po pet instrumenata koji istražuju magnetska polja, kozmičke zrake i solarne vjetrove. Svaki ima i zlatnu ploču s ugraviranim višejezičnim pozdravima, glazbom i slikama za slučaj da na njih naiđu neki inteligentni vanzemaljci. Kamere im već dulje ne rade, međutim prije nego što su ugašene, Voyager 1 je 1999. poslao sliku Zemlje s udaljenosti od oko 6 milijardi km (pogledajte gore). U svojem govoru na sveučilištu Cornell slavni popularizator znanosti Carl Sagan istaknuo je da se cijela ljudska povijest dogodila na toj točkici koja s tako goleme udaljenosti izgleda beznačajno, ali je naš dom. Iako na misiji više nijedan znanstvenik ne radi puno radno vrijeme, šačica inženjera satelitskog kampusa u Pasadeni još uvijek prati signale koje blizanci šalju. U kontrolnoj sobi, koju bi bilo lako zamijeniti za ured osiguravajuće kompanije da nema natpisa 'Kontrolor misije', na računalu stoji upozorenje: 'Ključni hardver misije Voyager. Molimo vas, ne dirajte.' Daleke 1977. misija je stajala 983 milijuna dolara, što bi danas bilo oko 3,7 milijardi. - Sviđa vam se članak? Preporučite ga prijateljima putem ovih servisa: Pošaljite mailom