:00:13. > :00:14.Afternoon, all - I'm Ricky, today it's all about space.
:00:15. > :00:17.And how did the stars and galaxies form?
:00:18. > :00:19.Scientists hope to answer these questions with the world's biggest
:00:20. > :00:23.It's HQ is here in the UK, but it's being built
:00:24. > :00:51.For years, humans look to these guys and have wondered what lies beyond
:00:52. > :00:58.our world. With our eyes we studied the stars and planets and with
:00:59. > :01:02.curiosity and amazement. Ancient people believed the stars had
:01:03. > :01:08.special powers and built mystical structure like Stonehenge to study
:01:09. > :01:13.the movements of the sun and moon. While others learned to use the sky
:01:14. > :01:19.as a map to navigate over land and sea. But then came one of the most
:01:20. > :01:26.important inventions in history. The telescope. A simple piece of glass
:01:27. > :01:34.that makes things far-away appear close. Using optical telescopes we
:01:35. > :01:39.found craters and mountains on the moon, sports on the sun, and
:01:40. > :01:49.discovered we are surrounded by other planets in a galaxy called the
:01:50. > :01:54.Milky Way. But around 80 years ago scientists began to look into the
:01:55. > :01:59.Kosmos for things arise couldn't see and they invented the radio
:02:00. > :02:06.telescope. Science belonging to the invisible world. What an optical
:02:07. > :02:12.telescope does is enhances the view you get from your eyes. What a
:02:13. > :02:17.telescope does is it increases the size of your pupils to the width of
:02:18. > :02:24.the telescope to see fainter things and magnifies. And how does a radio
:02:25. > :02:29.telescope works? What you see with your eye is the rainbow, from red to
:02:30. > :02:34.Violet, but beyond the rainbow that is a lot of information you'd write
:02:35. > :02:41.cannot see. There is infrared and radial and ultraviolet and x-rays
:02:42. > :02:47.and gamma rays, so a radio telescope helps us see the invisible universe.
:02:48. > :02:53.If humans had radio dishes for eyes we would be able to see through
:02:54. > :02:57.clouds and as much by Diaz by night, because these telescopes do not see
:02:58. > :03:02.the stars but instead the gas between the stars that produces
:03:03. > :03:08.radio waves. And now scientists are building a giant radio telescope,
:03:09. > :03:13.100 times more powerful than the best in the world. When finished it
:03:14. > :03:18.will help us explore further than we have ever seen before. Two letters
:03:19. > :03:31.discover new galaxies and how the universe began and maybe even find
:03:32. > :03:34.Alien life. This is the Lowell telescope built over 50 years ago,
:03:35. > :03:42.still one of the most powerful in the world. But the telescope
:03:43. > :03:50.scientists are working on now could be 100 times more powerful and its
:03:51. > :03:54.images will be 6000 times sharper. But it won't just be one massive
:03:55. > :04:04.telescope like this but thousands of smaller dishes and up to 1,000,010
:04:05. > :04:21.I. It will be built over an area the size of 200 football pitches. We'll
:04:22. > :04:25.come to the SKA project. The telescopes are being built into main
:04:26. > :04:35.countries, Australia and South Africa. They will be faster than any
:04:36. > :04:41.system that exists at the moment. They will be so sensitive, they will
:04:42. > :04:54.be able to pick up signals from planets tens of light years away.
:04:55. > :05:01.This is the most exciting science project of this early part of the
:05:02. > :05:05.century. We are going to use it to look backwards in time to the
:05:06. > :05:11.beginning of the universe to answer some amazing questions, such as, or
:05:12. > :05:20.they are the beings as us in universe? If you can imagine these
:05:21. > :05:26.being part of the lens. The farther apart the art, the sharper the
:05:27. > :05:33.image. Add up the areas of all of them and that is one really good
:05:34. > :05:41.one. These dishes will be the eyes of the project. And a computer like
:05:42. > :05:46.this one will be the brain. All of the information from the dishes has
:05:47. > :05:53.to go somewhere, like Best supercomputer being built right here
:05:54. > :05:59.in the UK. This has the power of 1 million home computers. SKA will see
:06:00. > :06:03.more of the complete picture and good change what we know about our
:06:04. > :06:10.universe and life as we know it forever. This week I will see where
:06:11. > :06:18.thousands of dishes are being built and discover how SKA can help us
:06:19. > :06:21.detect Aliens. This galaxy is one of millions of galaxies. Maybe the
:06:22. > :06:28.others live somewhere and another solar system! And you tell us what
:06:29. > :06:33.it is like to be involved in a project like this.