![]() What are the distances between the telescopes and Earth? This is why images taken using telescopes which detect infrared frequencies can pick out objects beyond these clouds, and appear clearer than those taken using other telescopes. ![]() Infrared light has a longer wavelength and can pass through objects in space that visible light is blocked by, such as gas and dust. However, there are many other forms of light we cannot see, both inside and outside our atmosphere. Our eyes have evolved to detect the band of the spectrum which is known as ‘visible light’, which is unsurprising given that our atmosphere blocks out many of the other wavelengths. Light travels in a range of frequencies along the electromagnetic spectrum. This means it won’t be able to see in ultraviolet light like Hubble, but will be able to focus on infrared bright objects like extremely distant galaxies JWST has been designed to focus on the infrared part of the spectrum from 0.6 (red light) to 28 microns (infrared). Instead it focuses its unique ultraviolet (0.1 to 0.4 micron) capabilities on work that cannot be done from the ground and its visible (0.4 to 0.8 micron) light instruments on producing the high resolution images we are most familiar with Its instruments can observe a small portion of the infrared spectrum from 0.8 to 2.5 microns, but not to the extent that James Webb can. Hubble’s main focus is on visible and ultraviolet light. What type of light do the telescopes see? Hubble
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