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Listed under:  Science  >  Forces and energy  >  Mechanical energy  >  Motion  >  Rotational motion  >  Orbits
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A long history of the Moon

The Moon is a familiar object in the night sky and impacts life on Earth as it orbits our planet. Watch this animation showing how the moon has changed since its formation 4.5 billion years ago. See how the Moon's surface altered over time as volcanoes and asteroids created the basins and craters present on the Moon today.

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A long history of planet Mars

Mars, the fourth planet from the Sun, is a cold, dry, desert-like place with a thin atmosphere and no signs of existing water or life. However, evidence suggests that its surface might once have looked very different, and that it possibly contained bodies of water. Watch this animation showing what Mars may have looked ...

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And now for the Sun's weather

The Sun is the primary source of energy on Earth and plays a major role in the weather we experience, but how does it affect weather in space? Watch this animation showing what happens when there is solar wind, solar flare and even a solar storm. Find out about their impacts on our planet and on us.

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Mysteries of the solar system

This is a web resource that contains mysterious photos of various aspects of planets in our solar system and shows how further space exploration helped to explain the mysteries. Each initial image has an engaging title, explains how the image was obtained and why the image was deemed to be mysterious. The subsequent image, ...

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Our world: moons in our solar system

This is a NASA 'Our World' video clip focusing on the celestial objects that orbit the planets of the solar system. The narrators include an enthusiastic young student and a planetary scientist who provide intriguing information about a variety of moons. The presence of water on some moons raises the possibility that there ...

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Our world: communications in space

This is a NASA 'Our World' video clip focusing on the different ways that astronauts on the International Space Station use technology to communicate with ground staff and others on Earth. The narrators include the puppet Lily and actual astronauts on the space station. Different modes of communication include radio contact, ...

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Spacewalk game

This is an interactive resource that explores the International Space Station through a Station Spacewalk Game in which participants conduct virtual NASA repair work on the International Space Station. In the game, participants leave the airlock and complete tasks executed by astronauts to help power up the space station ...

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Why we can see some planets but not others

In this planetarium demonstration, the air has been sucked out of the sky to give us a black sky so we can actually see the planets that are above us. Why is it that we can't always see the planets? How does our proximity to the sun affect how visible a planet is to us?

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BTN: The Moon landing

Some say landing on the moon is as one of humanity's greatest achievements. Learn about the history of the moon landing and some of the challenges faced by scientists. See actual footage of the astronauts on the moon as part of the Apollo 11 mission.

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My solar system

This is an interactive resource exploring the orbital motion of a system of planets. Using the orbital simulation, students can build their own system of planets and watch the gravitational ballet. They can set initial positions, velocities, and masses of 2, 3, or 4 bodies, and then see them orbit each other. This interactive ...

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BTN: Living on the International Space Station

What would it be like to live on a space station? In this clip you'll see footage of astronauts on the International Space Station and discover what their daily life is like. You'll also find out about how the space station was built and about some important research being done there.

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Triple J: Why is Pluto not a planet?

Watch this clip and learn why Pluto was taken off the official list of planets. Dr Karl Kruszelnicki explains the three criteria that must be met before planets can be called planets. What are they?

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From Stonehenge to STEREO

Humans have been studying the sun for a long time, possibly because life on Earth is directly influenced by the sun. Why is the sun so vital to life on Earth? Think about what would happen to life on Earth if the sun didn't exist.

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ABC News Dr Karl discusses the Earths heat video

Discover the activities deep within the Earth that could seriously impact life on Earth far into the future. Watch this video to find out about the sources of the Earth's own heat. Dr Karl explains clearly just what is below the Earth's surface and what is happening there. As well, he talks about changes in the Sun and ...

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ABC News: Dr Karl discusses mining asteroids

Imagine an asteroid, half the size of a football field, hurtling towards Earth at a speed of 28,000 kilometres per hour! Watch this clip to find out about Asteroid 2012 DA14 and whether it poses any threat to Earth. You will also discover why mining prospectors are keen to capture asteroids such as this one. Could the next ...

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The Milky Way

What do you know about the Milky Way? Did you know that there are hundreds of billions of stars in it? Before you embark on your stargazing expedition, watch this video to learn how you can use just your hands and a compass to locate stars in the sky! What is the unit of measurement used when you're measuring distances ...

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An eclipse of the Moon

The phases of the Moon and lunar eclipses occur due to the Moon's orbit of Earth, and its position in relation to both the Earth and the Sun. Watch this animation showing a model of the Moon's orbit, its phases and a lunar eclipse. Discover what a total lunar eclipse is and what causes the red colour of a 'blood moon'.

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Why do the stars move across the sky?

If you stand still and look up at the night sky for hours on end, you'll notice that the stars will move across the sky westwards. The truth is, it's not the stars that are moving, it's us! Do you know how the Earth moves in space? What do we orbit?

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Phases of the moon

Can you name the different phases of the moon? Watch this video and learn about the phases, how long a full lunar cycle is and why the moon looks larger at times.

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DIY Sun Science - iTunes app

Try some hands on investigations that relate to learning about the Sun. Follow step-by-step procedures, read through explanations to find out why things happened and also view related video clips. Free when reviewed on 12/5/2015.