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Nasa revealing new images of distant cosmos

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Nasa revealing new images of distant cosmos​

On Monday, Webb revealed the clearest image to date of the early universe, going back 13 billion years

James Webb Telescope

The first full-color image from Nasa's James Webb Space Telescope, a revolutionary apparatus designed to peer through the cosmos to the dawn of the universe, shows the galaxy cluster SMACS 0723, known as Webb’s First Deep Field, in a composite made from images at different wavelengths taken with a Near-Infrared Camera and released July 11, 2022 AFP
AFP
July 13, 2022 1:05 AM

The James Webb Space Telescope began releasing a new wave of cosmic images on Tuesday, heralding a new era of astronomy.
"Every image is a new discovery," said Nasa administrator Bill Nelson. "Each will give humanity a view of the universe that we've never seen before."

On Monday, Webb revealed the clearest image to date of the early universe, going back 13 billion years.

One new image on Tuesday showed water vapor in the atmosphere of a faraway gas planet. The spectroscopy -- an analysis of light that reveals detailed information -- was of planet WASP-96 b, which was discovered in 2014.

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An observation of a planetary nebula from the NIRCam instrument of Nasa's James Webb Space Telescope, a revolutionary apparatus designed to peer through the cosmos to the dawn of the universe and released July 12, 2022 AFP

Nearly 1,150 light-years from Earth, WASP-96 b is about half the mass of Jupiter and zips around its star in just 3.4 days.

"We've seen the effect of what happens when a planet and its atmosphere passes in front of the star, and the star light filters through the atmosphere, and you can break that down into wavelengths of light," said Nasa's Knicole Colon.
"So you're actually seeing bumps and wiggles that indicate the presence of water vapor in the atmosphere of the planet."

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This image released by Nasa on July 12, 2022, shows Stephan’s Quintet captured by the James Webb Space Telescope (JWST), a visual grouping of five galaxies, in a new light AFP

Other targets that will be released include Carina Nebula, a stellar nursery, famous for its towering pillars that include "Mystic Mountain," a three-light-year-tall cosmic pinnacle captured in an iconic image by Hubble.

One stunning shot released by the White House on Monday was overflowing with thousands of galaxies and features some of the faintest objects observed.

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This image released by Nasa on July 12, 2022, from the James Webb Space Telescope (JWST) shows a landscape of ‘mountains’ and ‘valleys’ speckled with glittering stars which is actually the edge of a nearby, young, star-forming region called NGC 3324 in the Carina Nebula AFP

Known as Webb's First Deep Field, it shows the galaxy cluster SMACS 0723, which acts as a gravitational lens, bending light from more distant galaxies behind it towards the observatory, in a cosmic magnification effect.

Launched in December 2021 from French Guiana on an Ariane 5 rocket, Webb is orbiting the Sun at a distance of a million miles (1.6 million kilometers) from Earth, in a region of space called the second Lagrange point.

Here, it remains in a fixed position relative to the Earth and Sun, with minimal fuel required for course corrections.

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This image released by Nasa on July 12, 2022, is a composit of the information captured by the Near-Infrared Camera (NIRCam) and Mid-Infrared Instrument (MIRI) on the James Webb Space Telescope (JWST) showing a landscape of ‘mountains’ and ‘valleys’ speckled with glittering stars which is actually the edge of a nearby, young, star-forming region called NGC 3324 in the Carina Nebula AFP

A wonder of engineering, the total project cost is estimated at $10 billion, making it one of the most expensive scientific platforms ever built, comparable to the Large Hadron Collider at CERN.
Webb's primary mirror is over 6.5 meters wide and is made up of 18 gold-coated mirror segments. Like a camera held in one's hand, the structure must remain as stable as possible to achieve the best shots.

After the first images, astronomers around the globe will get shares of time on the telescope, with projects selected competitively through a process in which applicants and selectors don't know each other's identities, to minimize bias.

Thanks to an efficient launch, Nasa estimates Webb has enough propellant for a 20-year life, as it works in concert with the Hubble and Spitzer space telescopes to answer fundamental questions about the cosmos.
 
I personally believe the universe is infinite, As more powerful telescopes become available the further we see.
 
I personally believe the universe is infinite, As more powerful telescopes become available the further we see.
No one will ever know for sure but it can also be a multi-universe or an ever-expanding single Universe. But, in both cases, we cannot probably see all of them anytime in the future because their lights may not ever reach our Earth.

In reality, we assume the age of the Universe as 13 billion years because our telescopes cannot see objects existing farther than this distance. It means those lights have not reached us or will ever reach.

Please note that the light we see today is from the galaxies that seem to exist in places from where light traveled 13 billion years to reach us. So, we assume the Universe is 13 billion years old.

Now, please note that this light we see today has started its journey 13 billion years ago, but during this long period, these same galaxies have also moved farther away at more than the speed of light.

So, it is possible that these galaxies that we think exist 13 billion light-years away actually now may exist 28 billion light-years away because they have moved farther during the 13 billion period its light traveled to us.

This is how the Universe is expanding that will continue for trillions of years but the Earth's living being itself may collapse after less than 100 million years.

All because of overheating of the Sun @6% per 10 million years.
 

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