II. Use the correct form of the given word to complete each of the following sentences far – isolate – agent - astronomy – gravity – expect – observe – profession- identify Beyond the (0) ….......…….. planet in our solar system, two spacecraft, Voyagers 1 and 2, travel in total (1) …………………… and without any human control towards unknown parts of the galaxy. They were launched by the American space (2) …………………… NASA in 1977. This was a unique time in (3) …………………… history, when a particular alignment of the planets allowed the spacecraft to be thrown by the (4) …………………… pull of each planet. Over the next 10 years, the two spacecraft exceeded (5) …………………… by continuing to travel long after they had achieved their missions (to make detailed (6) …………………… of Jupiter and Saturn). In 2013, the organisation confirmed that the spacecraft had crossed the heliopause (essentially the end of our solar system) Although (7) …………………… scientists find it unlikely that the Voyagers will be found by other life forms, objects have been placed on each spacecraft which provide its (8) …………… and could be the first step in communication between our species and theirs. The Voyagers may never return to Earth, but their impact on our culture and history may be just beginning.