http___metro-portal.hr_voyager-izlazi-iz-suncevog-sustava_73155_1.xml
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No other objects touched by human hands have ever explored as far in the cosmic ocean than the Voyagers. - The primary mission was the exploration of Jupiter and Saturn. After making a string of discoveries there — such as active volcanoes on Jupiter’s moon Io and intricacies of Saturn’s rings — the mission was extended. Voyager 2 went on to explore Uranus and Neptune, and is still the only spacecraft to have visited those outer planets. The adventurers’ current mission, the Voyager Interstellar Mission (VIM), will explore the outermost edge of the Sun’s domain. And beyond. - The Voyager 1 & 2 spacecrafts will be the third and fourth human spacecrafts to fly beyond all the planets in our solar system. Pioneers 10 and 11 preceded Voyager in outstripping the gravitational attraction of the Sun but on February 17, 1998, Voyager 1 passed Pioneer 10 to become the most distant human-made object in space. - As of June 8, 2014 Voyager 1 is 19 BILLION km away from Earth while Voyager 2 is 15.6 BILLION km away - Both Voyager spacecrafts carry a greeting to any form of life, should that be encountered. The message is carried by a phonograph record - -a 12-inch gold-plated copper disk containing sounds and images selected to portray the diversity of life and culture on Earth. The contents of the record were selected for NASA by a committee chaired by Carl Sagan of Cornell University. Dr. Sagan and his associates assembled 115 images and a variety of natural sounds. - Voyager 1 is speeding along at about 57,600 kph (35,790 mph) — fast enough to travel from the Earth to the sun three and a half times in one year. - NASA’s Voyager 1, humankind’s most distant spacecraft, is around 125 AU. Scientists believe it entered interstellar space, or the space between stars, on Aug. 25, 2012. Much of interstellar space is actually inside our solar system. It will take about 300 years for Voyager 1 to reach the inner edge of the Oort Cloud and possibly about 30,000 years to fly beyond it. - Alpha Centauri is currently the closest star to our solar system. But, in 40,000 years, Voyager 1 will be closer to the star AC +79 3888 than to our own sun. AC +79 3888 is actually traveling faster toward Voyager 1 than the spacecraft is traveling toward it. - Barring any serious spacecraft subsystem failures, the Voyagers may survive until the early twenty-first century (~ 2025), when diminishing power and hydrazine levels will prevent further operation. WHERE ARE THE VOYAGERS RIGHT NOW? (Source: http://voyager.jpl.nasa.gov/) (via unfuckthereallife)
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Voyager izlazi iz Sunčevog sustava Edward Stone iz projekta Voyager kaže kako je ovo uzbudljivo vrijeme za Voyager jer primaju dosta podataka od sonde o promjenama pri prelasku u međuzvjezdani prostor koje još ne razumiju Voyager 1, sonda lansirana davne 1977. godine, i dalje ne prestaje začuđivati znanstvenike, posebno sada, kada je na rubu našeg Sunčevog sustava i sprema se priječi u međuzvjezdani prostor. Promjene koje bi čestice trebali doživjeti na rubu međuzvjezdanog prostora zabilježene su na većooj razini nego ikad u posljednjih sedam godina. Posljednjih sedam godina, Voyager 1, istražuje rub našeg Sunčevog sustava i što se događa sa česticama kad dođu u njega. Nedavno, 28. Srpnja, dogodio se veliki skok u broju čestica koje dolaze izvan našeg sustava, a isto tako i pad u broju čestica koje dolaze iz Sunca. Da stvar bude čudnija, u sljedeća tri dana stvari su se vratila na normalu. Znanstvenici pretpostavljaju da i magnetsko polje u tom području mjenja smjer te se nadaju da će im sonda pomoći i pri tome. Te podatke bi trebali dobiti sljedeći mjesec. Edward Stone iz projekta Voyager kaže kako je ovo uzbudljivo vrijeme za Voyager jer primaju dosta podataka od sonde o promjenama pri prelasku u međuzvjezdani prostor koje još ne razumiju te nadodaje: „Sada smo u novom prostoru na rubu Sunčeva sustava gdje se stvari mijenjaju strahovito brzo, no još ne možemo reći da smo ušli u međuzvjezdani prostor." Znanstvenici su predviđali da razina čestica niske energije padne blizu nule, ali kažu da su ovi rezultati skroz neočekivani i da rast i pad čestica brži no ikad. Voyager 1 se sada nalazi na 18 milijardi kilometara od Sunca, dok Voyager 2, poslan kasnije iste godine, se nalazi na 'samo' 15 milijardi kilometara.