Space Conditions

Space has always been a mystery. It is hard to know what goes on space due to our limited reach, but one thing that astronomers know is the conditions of space. Ever since the Big Bang, space has been changing, from size to the contents within space. The conditions of space show what it was like near the beginning of time. As time progresses, space will continue to shift and change.

 Space is a vacuum. There is little to no particles(excluding things like stars, galaxies, planets, etc.) in outer space, so this means that there is no friction at all in space. Because of space being a vacuum, the temperature in interstellar space(a place in space where it has no effect from nearby stars and other astronomical bodies) is around 3° K(K means Kelvin). To put it in perspective, that is about -270° C or -454° F.  But when there is something like a star or planet near, the temperature around it is much higher. For example, the temperature around the Earth is around 283°K or 10°C or 50°F.

 In space, there are these types of rays called cosmic rays. Cosmic rays are fragments of atoms that have come from outside of the solar system. These types of rays would be very harmful to life on Earth but thanks to the ozone layer and the magnetic field of Earth, life is safe from the cosmic rays. Many stars also release some of their mass; for example, the Sun usually would release the solar wind(particles emitted from the Sun). Not only this but everything in the universe(including humans) gives off electromagnetic(EM) radiation. EM radiation is the natural radiation produced by matter from the universe. This type of radiation starts from radio waves(longest wavelength) until gamma rays(shortest wavelength).
Source Link: http://www.geditorial.com/blog/sunday-science-the-electromagnetic-spectrum

 EM radiation is radiation released by anything that is made of matter and is heated. This would mean that everything in the universe (that is made of matter) releases some type of EM wave. As said before, the longest wavelength is radio waves. The wavelength(λ) of radio waves is around the size of skyscrapers to about the size of humans. The next type of wave is the microwave. They are around the size of the wavelength of these wavers is around the size of insects(i.e butterflies). After this, there is the infrared wave(humans emit these types of waves). The wavelength of these types of waves is around the width of a hair follicle. Then, there is the visible light(the light human eyes can detect). The wavelength of this is around the size of protozoans. Next, there is the ultraviolet. The wavelength of this is around the size of molecules. Then, there are the X-rays. The wavelength of these waves is around the size of atoms. Finally, there are the 




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