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Infra-red "rays" are part of the continuous electromagnetic spectrum stretching from gamma rays at one end to radio waves at the other.
One property of electromagnetic waves is their ability to travel through a vacuum.
Infra-red is emitted from the surface of any hot body (anything above absolute zero which is approx -273degC) for example the sun.
The simple answer therefore is that infra-red is everywhere in space where absorption has not taken place.
What else can I help you with?
Can solar panels absorb infrared rays?
Yes, solar panels can absorb infrared rays as part of the sunlight they receive. While infrared light is not the primary source of energy for solar panels (they mostly rely on visible light), they can still convert some of the infrared rays into electricity using photovoltaic cells.
What wavelength does white light from the sun have?
White light from the sun contains a broad spectrum of wavelengths ranging from about 400 nm (violet/blue) to 700 nm (red), covering the visible light spectrum.
Who invented the infrared laser thermometer?
The infra-red laser thermometer was invented by David Phillips in 1984. It was an ear thermometer. The original discovery of infra-red technology was in 1800 by William Herschel.
Which types of the sun's radiation is not blocked by the earth's atmosphere?
Infra red and visible light.
Describe what happens to radiant energy once it enters the atmosphere?
It may be converted into heat (or cause chemical reactions to occur), otherwise it remains radiant energy and escapes back into space. Note that much of what stays as heat is converted back into infra-red radiation and lost into space at night.
How does heat travel through outer space?
Only as electromagnetic radiation and named as infra red rays.
Who can see the infra red rays?
microorganism
When the earth is warm it radiates its own rays of heat what are they called?
Infra-red rays.
Electromagnetic waves in the form of heat?
Infra red rays
Which rays are used to take photographs in dark?
infra red
What animal can see uv rays and infra-red light?
Goldfish
Which rays used for telecommunication?
radio waves, microwaves, infra red
Can you see body nude beneath clothes with the help of infra red rays?
No.
What is the order of stingrays?
Gamma rays X-rays Ultra violet rays ( purple) Visible Light rays Micro rays Infra red rays Radio rays
What kind of rays are emitted by sun?
Visible light, Ultra-violet, Infra-red, Gamma-rays and X-rays (amongst others)
Why infra red rays are used mostly in security alarm?
simple its cheap and works
How is heat tranferred by radiation?
First of all it is important to note that heat and infra-red rays are NOT the same thing. When an object gets really hot it starts to glow, emitting red light at first, (hence the phrase: 'red hot') because red is the least frequency. Hotter objects emit light of higher frequency. A light bulb and the Sun are both examples of this. But infra-red rays are even lower in frequency than red light. Infra-red rays are emitted in the same way by objects at room temperature. That means you, your computer and everything around you are 'glowing' with this infra-red radiation. Infra-red rays carry energy between objects at the speed of light. This process causes relatively hot objects to cool down faster.
