PacSci-Doku - "Solar Power"
By Dennis Schatz - Vice President of Strategic Development

The question in this edition is:

What Powers The Sun?
The Answer - Hydrogen

Scroll down to see the solution to our puzzle.

The center of the Sun is so hot and under so much pressure that hydrogen atoms are fusing together to form helium atoms. This releases vast amounts of energy that keeps the Sun hot and produces the outward pressure needed to keep the Sun from collapsing under its own gravitational force. In 4.5 billion years the Sun will run out of hydrogen in its core. When that happens, the center of the Sun will collapse and get hotter until it can fuse helium into carbon. At the same time the Sun's outer layers will expand and cool until the Sun's surface is beyond the orbit of the Earth. The Sun will then be a red giant star, much like the star Betelguese in the constellation of Orion.


Here is the solution:

PacSci-Doku


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