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• TLF-IDM019551

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 ...

• TLF-IDM016726

This brief ABC News in Science article from 2009 explains that asteroids become redder the longer they stay out in the sun because of the solar wind. Scientists are using this to try to find our more about our planetary origins.

• TLF-IDM015865

Can you imagine how huge the Sun is, or how far away planets such as Saturn are? Watch this clip to discover how 'mind-bending-ly big' the solar system is. Presenter, Bernie Hobbs, scales down the the solar system to fit into a football field to demonstrate the relative sizes and distances of the Sun and planets. Find out ...

• TLF-IDM018811

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 ...

• TLF-IDM012114

This is a comprehensive NASA website that provides extensive factual information for teachers and students about the celestial objects making up the solar system. The website provides a general introduction to the solar system and a network of links to information about each of the major components: the Sun, each of the ...

• TLF-IDM015414

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 ...

• TLF-IDM011992

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 ...

• TLF-IDM015434

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.

• TLF-IDM021086

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?

• TLF-IDM011989

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, ...