[ExI] Webb Telescope setup going great!

BillK pharos at gmail.com
Wed Mar 16 22:07:11 UTC 2022


The James Webb Space Telescope's main mirror is fully aligned and
performing even better than it had been designed to do, NASA officials
revealed in a news conference held virtually on Wednesday (March 16).

<https://www.space.com/james-webb-space-telescope-better-than-expected-image>

Quote:
The image released on Wednesday shows a bright-shining amber-colored
star emanating streams of light across the universe. Even more
interesting than the star itself, however, is its background,
revealing dozens of specks and dots — each a distant galaxy that was
previously out of reach.

These distant galaxies make Webb's first image a so-called deep field.
Such photographs, focusing on small sections of the sky, aim to
capture the most distant objects in the universe. Deep fields are a
specialty of the Hubble Space Telescope, Webb's predecessor. Webb,
however, is set to beat Hubble in its ability to peer into the depths.

"There's no way that Webb can look for 2,000 seconds at any point in
the sky, and not get an incredibly deep field," Rigby said. "This is
going to be the future from now on. Wherever we look, it's a deep
field. Without even really breaking a sweat, we're seeing back in time
to galaxies that we're seeing the light as it looked billions of years
ago."
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First scientific images are expected to be released in June or July.
NASA is keeping the celestial object that will become the first target
of Webb's scientific exploration secret until then.
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This telescope should be magnificent for astronomy - 100 times more
sensitive than Hubble - unbelievable!

BillK



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