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Stack #4570114
| Question | Answer |
|---|---|
| stars | celestial bodies made of a mass of gas, held together by its own gravity, where energy is produced by nuclear reactions in its interior |
| telescope | a tool to collect waves of the electromagnetic spectrum |
| satellite | any natural or artificial body in orbit around another body |
| emissions spectrograph | the light energy emitted from stars is split by a prism and separated into a spectrum of colors |
| spectroscope/spectrometer | tool to separate light into the spectrum of colors |
| nuclear fusion | the atoms nucleus combining with another to form a larger atom and releasing a large amount of energy. |
| redshift | the Doppler effect moving AWAY from the target, longest wavelength is red. |
| space probe | crewless spacecrafts designed to explore the solar system and transmit data back to earth. |