31/05/2016 Newsround


31/05/2016

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Good morning, I'm Ayshah with a special Newsround this Tuesday.

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Keep watching to find out about a global project

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which is trying to see further into space than ever before.

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And how did the first stars and galaxies form?

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Two massive questions that scientists are hoping to answer,

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with the world's biggest and most powerful radio telescope.

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Its HQ will be right here in the UK, but it's being built

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This week we'll be telling you about, how it could change our

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For thousands of years humans looked to the skies and have wondered what

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With our eyes we studied the stars and planets in the night sky, with

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Ancient peoples believed the stars had

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special powers and built mystical structures like Stonehenge to study

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While others learnt to use the sky as a map to help them navigate over

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Then came one of the most important inventions in

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A simple piece of glass that makes things that are

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far away appear close, magnifying the viewing power of our eyes.

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Using optical telescopes, we found craters

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and mountains on the moon, spots on the sun, and discovered we are

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surrounded by other planets in the galaxy called the Milky Way.

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But around 80 years ago, scientists began to look into the cosmos

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for the things our eyes could not see, when they invented the radio

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Sights belonging to the invisible world.

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What an optical telescope does is enhances the view

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with your eye so if you got with your eye and look

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the light goes through your pupil but what telescope does is it

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increases the side of your pupils to the other

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to a sceptic and collect more light is he things and magnifies its odour

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What you see with your eye is the colours of the

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rainbow but beyond the rainbow there is a whole lot of information

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of information your eye can't see so beyond the red there is

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the infrared and then the radio, beyond the Bard is the ultraviolet

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and then the x-rays and gamma rays so radio

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you see the universe, a completely different view

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If humans had radio dishes for eyes we would be

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able to see through clouds and as much by day as we do by night.

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That is because these telescopes don't see

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the stars, but instead see the gas between the stars that produce radio

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And now scientists are building an giant radio telescope,

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100 times more powerful than the best in the world.

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When it's done, it will help us explore what's out

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there further than we have ever seen before.

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To let us discover new galaxies, how the universe began and

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This telescope was built over 50 years ago.

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It's still one of the most powerful radio scripts in the world.

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But the telescope scientists are working on

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now will be 100 times more powerful and the images will be 6000 times

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But it won't just be one massive telescope like this.

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Thousands of smaller dishes and up to a million antennae, that will be

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huddled together over an area the size of 200 football pitches.

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The telescopes are being built into main countries, Australia and South

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Africa. They will be faster than any system that exists at the moment.

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They will be so sensitive, they will be able to pick up signals from

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planets that are tens of light years away.

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This is the most exciting science project of this early part of the

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century. We are going to use it to look backwards in time, write to the

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beginning of the universe and to answer some amazing questions such

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as are their beings as intelligent as us out there in the universe. All

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the telescopes are spaced out, why? You can imagine them being part of a

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lens. The further they are apart, the sharper the vision. If you add

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up the areas of all of them, that's equivalent to one very big one.

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These dishes will be the eyes of the project. And a computer like this

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one will be the brain. One of the information from the dishes has to

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go somewhere, like this supercomputer being built right here

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in the UK. This thing has the power of 1 million home computers. SKA

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will see more of the complete picture and could change what we

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know about our universe, and life as we know it, forever. This week I

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will see where thousands of dishes being built and discover how SKA

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could help us talk to aliens. Maybe there is life somewhere, in a solar

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system in another galaxy. And you tell us what it's like to be

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involved in a project like this.

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