Special GoogleHealth Search
| This image of a
building with a tree and grass shows
how Chlorophyll in plants reflect
near infrared waves along with
visible light waves. Even though we
can't see the infrared waves, they
are always there. The visible light
waves drawn on this picture are
green, and the infrared ones are
pale red. |
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| This
image was taken with special film
that can detect invisible infrared
waves. This is a false-color image,
just like the one of the cat.
False-color infrared images of the
Earth frequently use a color scheme
like the one shown here, where
infrared light is mapped to the
visible color of red. This means
that everything in this image that
appears red is giving off or
reflecting infrared light. This
makes vegetation like grasa and
trees appear to be red. The visible
light waves drawn on this picture
are green, and the infrared ones are
darker red. |
|
Instruments on board satellites can also
take pictures of things in space. The image
below of the center region of our galaxy was
taken by IRAS. The hazy, horizontal S-shaped
feature that crosses the image is faint heat
emitted by dust in the plane of the Solar
System.
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