<
https://theconversation.com/two-experts-break-down-the-james-webb-space-telescopes-first-images-and-explain-what-weve-already-learnt-186738>
"Today we saw the release of the first batch of images taken by the James Webb
Space Telescope. This is something we have both been waiting on for nearly 25
years. Back in those days, we were analysing the first Hubble images of the
distant universe, and the details they revealed were shocking compared to
anything we’d seen in ground-based images.
It seems the bar has been raised once again, and Webb is set to herald a new
age for astronomy and space research. Its large mirror helps it produce images
that are two to three times sharper than Hubble’s, and which go much deeper
into space (which means it can see fainter sources).
Webb can also see far redder infrared wavelengths, opening up a new view on the
universe. This is especially important to study the early universe due to
“cosmological redshift”, a process which refers to the stretching of light
(with the expansion of the universe) as it travels across cosmic space.
It’s also useful for studying fascinating sources such as planets going around
nearby stars, and the regions where stars form.
We’ve written before about the tremendous technical challenges involved in the
construction of Webb and its journey into orbit. Now, with the long-awaited
first images in our hands, let’s take a look at what they show."
Share and enjoy,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
