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What is the chemical composition of stars?

A NASA astrophysicist explains what stars are made of, and why.

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Detect The Jupiter Like Planet Around Three Stars

Details of how large planets have been detected around three other solar type stars. Understanding Doppler wobble aided by an exercise.

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Life cycle of a star

The different stages of a star's life.

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How Do We Measure the Distance to Stars? - Instant Egghead

Short video on how we can use the parallax method to measure distances to nearby stars.

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How far away is stuff?

Great explaining on how we measure distances to stars using parallax and distances to galaxies using Cepheid Variables stars.

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Barns Are Painted Red Because of the Physics of Dying Stars

The iron that is often found in paint comes from the leftovers of dying stars.

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How do you find planets around other stars? - The Economist explains

A brief explanation how scientists find exoplanets from the radial method, to measuring Doppler shifts to measure drops in the intensity of light from stars.

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Christian Andreas Doppler

Biography of this physicist, remembered for his work on sound waves. He also conducted research on stars saying colours of stars will change depending on whether it is approaching or receding - ...

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Cepheid variable stars as distance indicators.

Read how Cepheid Variable stars can tell you distances to galaxies.

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hyperphysics

Hyperphysics - Neutrons

Structure and stability of the neutron with good links to other relevant parts of the site.

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