It is no exaggeration to say the James Webb Space Telescope (JWST) represents a new era for modern astronomy. Launched on December 25 last year and fully operational since July, the telescope offers glimpses of the universe that were inaccessible to us before. Like the Hubble Space Telescope, the
. The inset shows the power of the new telescope, with a zoom in on a small background galaxy. In the Hubble image we see some bright star-forming regions, but only with the JWST does the full structure of this and surrounding galaxies reveal itself.The ‘Pillars of Creation’, a star-forming region of our galaxy, as captured by Hubble and JWST . Credit: NASA, ESA, CSA, STScI; Joseph DePasquale , Anton M. Koekemoer , Alyssa Pagan .
In the meantime, light from the still-forming star illuminates the gas above and below the disk, making the hourglass shape. Our previous view of this came from Spitzer; the amount of detail is once again an enormous leap ahead.An infrared view of Jupiter from the JWST.
Much JWST science is designed to be combined with Hubble’s optical views and other imaging to leverage this principle.A ‘zoom in’ on a galaxy from one of the universe’s earliest epochs, when the universe was only about 300 million years old . Galaxies at this distance are impossible to detect in visible light as their emitted radiation has been ‘redshifted’ far into the infrared. Credit: NASA/STScI/C.
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