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In the inner solar system, the largest surface features (such as volcanoes or valleys)are found on the largest planets.
Nuclear Fusion
A process where two light atomic nuclei combine to form a heavier nucleus, releasing energy as a result.
Electromagnetic Radiation
A form of energy that is propagated through space or matter, consisting of electric and magnetic fields that oscillate at right angles to each other.
Nitrogen Cycle
A biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems.
Human Impact
The effects and consequences of human activities on the environment and its natural processes.
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