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Keynote lectures/Craters by radiation
[[Image:Chain of impact craters on Ganymede.jpg|thumb|right|250px|The image shows a chain of craters on Ganymede. Credit: Galileo Project, Brown University, JPL, NASA.]]
A '''crater''' may be any large, roughly circular, depression or hole in or beneath the rocky surface of a rocky object.

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For crater astronomy, the proof of concept is demonstrated by unique or novel [[Keynote lectures/Astronomy|astronomy]] in any band that explores craters to reveal knowledge, especially regarding their formation.

==Radiation==

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[[Special:Search |Radiation]] that may produce a crater is likely larger than subatomic particles. The range of size and composition of this radiation is large. Such radiation may be rocky, liquid, gaseous, or plasma, a moving galaxy cluster, down to the size of an atom, molecule, or dust.

The characteristics of the crater likely depend on the energy of impact broken down into at least angle, speed, media, and dissipation.

==Planetary geology==
{{main|Planets/Geology|Planetary geology}}
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[[Category:Radiation astronomy/Lectures]]
[[Category:Resources last modified in November 2018]]