To see the Universe in full, astronomers have to get creative.
They combine multiple photos taken by different cameras to make
one colourful picture. For example, in this beautiful new
picture of a star-forming cloud, the space telescope called
Chandra only captured the purple regions. Meanwhile, another
space telescope called Spitzer saw things a bit differently when
it observed the same cloud - everything shown here other than
the purple bits! But why don't these two telescopes see the
star-forming cloud in the same way? The answer lies in the type
of light that the telescopes are designed to observe. Our eyes
can only see visible light. But there are many other types of
light that can be detected by special telescopes, such as
infrared, ultraviolet and X-ray. For example, the Spitzer
telescope detects infrared light. Spitzer is perfect for
observing dusty star-forming regions, as infrared light can
travel through the dust. The Chandra telescope, however, can't
see infrared light. Instead, Chandra can detec