NASA's Upcoming SPHEREx Mission Will map the Entire Universe in Infrared Every 6 Months - by BrianKoberlein
NASA's Upcoming SPHEREx Mission Will map the Entire Universe in Infrared Every 6 Months
Both ground-based and space-based infrared telescopes have been around for quite some time, but with the launch of the James Webb Space Telescope , astronomers will be able to capture the infrared sky in unprecedented detail. It will allow us to see warm planets huddled near their star, and distant galaxies so ancient that their bright visible light has redshifted to faint infrared. It will change our understanding of the early universe and perhaps reveal evidence of alien life.
But there is one aspect of the JWST that is very limiting. It is designed to capture high-resolution images of small areas of the sky. This is true for most telescopes since it is difficult to create an image with is both wide and detailed. Because of this, JWST will only be able to capture a fraction of the sky over time. For example, the Hubble Space Telescope has given us amazing views of the heavens, but in its 30-year mission, it has only captured about 0.1% of the visible sky.
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