ExploraTour: A Peek into the Lives of the Stars

What Happens to Stars Much Heavier Than The Sun?

STAGE 4a: Neutron Star

After the supernova blast blows off the outer layers of the star, all that is left is the central core. The core now contains a mass between 1.4 and 3.0 times the sun's mass but condensed into a volume 10- to 20- km across - roughly the size of a small town on Earth.

The matter in a neutron star would be incredible to behold. It is thought to be no longer gaseous. The surface may be crystalline.

Densities are a trillion times greater than those in a white dwarf. In fact, it is so dense that one teaspoonfull would outweigh the Empire State Building.

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The Earth Scientist, Volume XXV, Issue 3, Fall 2009

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ExploraTour - Looking at the World in a Different Light

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ExploraTour - Looking at the World in a Different Light

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ExploraTour - Looking at the World in a Different Light

This is a volcano on the island of Miyake in Japan. It has erupted, sending hot lava and ash into the air, a total of ten times. The time after one eruption until the next occurred was about twenty years...more

ExploraTour - Looking at the World in a Different Light

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ExploraTour - Looking at the World in a Different Light

This is a plant in Gary, Indiana where power is made. We use power to run things like television sets, radios, lights, and microwave ovens. The picture looks very strange because it was taken in infrared....more

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