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BTN: The biggest radio telescope in the world

In the past, astronomers explored the universe with their eyes and optical telescopes, but what they could see was limited. Find out how radio telescopes have revolutionised the way astronomers 'see' the universe, allowing us to explore deeper into space than ever before.Watch this clip to learn about Australia's contribution ...

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Can We Help?: 3D is back!

Andrew Woods from Curtin University answers the question 'How are 3D movies made?' Discover how how 3D glasses work. You might be surprised to find out how long ago people started making 3D movies.

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Experimentals: Do-it-yourself science toys

Bernie and Ruben show you how to make four do-it-yourself (DIY) science toys. Learn how to make a balancing tightrope walker, a lava lamp, a spinning spiral decoration and a cardboard boomerang. You might need some help with a few things.

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Catalyst: How will fire change the climate?

Considering the impact of a changing climate on the severity and frequency of fires is one thing, but how about the impact of fires on climate? Why does Professor David Bowman describe this scenario as a 'fire spiral'? What are the consequences of a world with fewer forests? As Professor Craig Allen explains, drought and ...

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How does the retina work?

When electrons in your retina absorb photons of light they don't emit light, they cause a molecule to change shape - and that lets you see colour!