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The Sun - a source of energy (pt 1/3)
The Sun - a source of energy (pt 1/3)

Duration: 01:27

How the sun is the main source of energy for life on earth.

 
The Sun
The Sun

Duration: 00:28

The sun and its distance away from the earth.

 
How big is the sun in relation to earth?
How big is the sun in relation to earth?

Duration: 00:39

How much bigger than Earth is the sun?

 
The Sun and its role in our galaxy
The Sun and its role in our galaxy

Duration: 01:02

An introduction to the Sun and its role in our galaxy.

 
What is the Sun made from?
What is the Sun made from?

Duration: 01:04

Sun spectroscopy reveals its constituent elements.

 
Sun and shadows
Sun and shadows

Duration: 01:05

How you can tell the time of day from shadows cast by the sun.

 
Skylab observes the Sun
Skylab observes the Sun

Duration: 03:23

Astronauts aboard the Skylab space station collect data about the Sun.

 
The seasonal movement of the Sun
The seasonal movement of the Sun

Duration: 02:05

How the changing position of the Sun affects the seasons.

 
The death of the Sun
The death of the Sun

Duration: 03:47

A description of the likely sequence of events in the life cycle of the Sun.

 
The Earth's orbit around the Sun
The Earth's orbit around the Sun

Duration: 01:09

An illustration of the tilt of the Earth's axis and the effect this has as the Earth orbits the Sun.

 
Predicting the death of the Sun
Predicting the death of the Sun

Duration: 03:38

Scientists have predicted the sequence of events when the Sun dies. The predicted collapse and expansion of the dying Sun is described.

 
Images of the Earth, Sun and Moon
Images of the Earth, Sun and Moon

Duration: 00:46

A compilation of images of the Earth, Sun and Moon, set to music.

 
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