Space tourism is human space travel for recreational purposes.  There are several different types of space tourism, including orbital, suborbital, and lunar space tourism. Space Tourism Market lets travelers travel in and across the Earth’s orbit for leisure, recreation, or significant business purposes. In addition, it will probably make travel …

Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behaviour of visible, ultraviolet, and infrared light. Because light is an electromagnetic wave, other forms of electromagnetic …