absorption spectrum
Emission spectrum
Gamma waves :D
It absorbs almost everything except the visible spectrum.
Waste materials, mining and transportation of radioactive fuels, radiation emissions from nuclear sites.
The electromagnetic radiation most capable of ionizing is the radiation with the highest energy per quantum. That in turn implies the radiation with the highest frequency (shortest wavelength). The highest-energy end of the electromagnetic spectrum is the region we call "gamma rays". We can't generate these, and the gamma rays we observe all originate in radioactive nuclear processes.
All parts of the electromagnetic spectrum cause heat, and fires emit EM radiation based on a plank curve. However, in the majority of "normal" fires, the most common source is in the infrared spectrum.
Most stars and many other objects in space emit radio and microwave radiation. Even the big bag emitted electromagnetic radiation.
The spectrum is a kind of analysis of the light emitted by a star.
Solar Fusion, the conversion at high temperature and pressure of hydrogen and other gases into radiant heat and gamma radiation.
the shortwave spectrum
Ultraviolet. Most of the spectrum is invisible to people.
Gamma waves :D
if you mean what is the source of radiation in space the he answer is it comes from stars in most of their lifespan
The visible spectrum (the radiation we can see as light). This is most likely why organisms evolved to be able to see visible light over other types of electromagnetic radiation - the sun emits this more than the other frequencies, so it was easier for life to evolve seeing this spectrum.
infrared radiation
The electromagnetic (EM) spectrum is a name for different types of radiation. Most radiation comes from the sun. Want more info?
A downward shift in frequency of radiation (perceived as reddening in the visible spectrum) is observed in most stars outside the Milky Way Galaxy. This red shift is assumed to be caused by the stars moving away from our galaxy at a sizable fraction of the speed of light. This shift is similar to the Doppler effect in sound.
It absorbs almost everything except the visible spectrum.