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unit 5
| Term | Definition |
|---|---|
| wavelength | the distance between two adjacent crests or troughs of a wave |
| electromagnetic spectrum | all of the frequencies or wavelengths of electromagnetic radiation |
| spectrum | a range of electromagnetic radiation that is ordered by wavelength or frequency, such as the band of colors that is produced when white light passes through a prism |
| probe | an uncrewed vehicle that carries scientific instruments into space to collect scientific data |
| artificial satellite | any human-made object placed in orbit around a body in space |
| NASA | the National Aeronautics and Space Administration |
| spinoff | a commercialized product incorporating NASA technology or “know how” that benefits the public |
| launch | the process of setting a rocket or spacecraft in motion |